CN86106651A - 新的药物制剂 - Google Patents
新的药物制剂 Download PDFInfo
- Publication number
- CN86106651A CN86106651A CN86106651.0A CN86106651A CN86106651A CN 86106651 A CN86106651 A CN 86106651A CN 86106651 A CN86106651 A CN 86106651A CN 86106651 A CN86106651 A CN 86106651A
- Authority
- CN
- China
- Prior art keywords
- globule
- grams
- active compounds
- millimeter
- pharmaceutical active
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000008194 pharmaceutical composition Substances 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 37
- 238000002360 preparation method Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000011162 core material Substances 0.000 claims description 37
- 239000003814 drug Substances 0.000 claims description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 229940079593 drug Drugs 0.000 claims description 14
- 238000013268 sustained release Methods 0.000 claims description 14
- 239000012730 sustained-release form Substances 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 210000001035 gastrointestinal tract Anatomy 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- 238000002512 chemotherapy Methods 0.000 claims description 3
- 230000002526 effect on cardiovascular system Effects 0.000 claims description 3
- 238000009501 film coating Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- UCTWMZQNUQWSLP-VIFPVBQESA-N (R)-adrenaline Chemical compound CNC[C@H](O)C1=CC=C(O)C(O)=C1 UCTWMZQNUQWSLP-VIFPVBQESA-N 0.000 claims description 2
- 229930182837 (R)-adrenaline Natural products 0.000 claims description 2
- 239000002876 beta blocker Substances 0.000 claims description 2
- 229940097320 beta blocking agent Drugs 0.000 claims description 2
- 230000003115 biocidal effect Effects 0.000 claims description 2
- 229960005139 epinephrine Drugs 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000003242 anti bacterial agent Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 17
- 238000009472 formulation Methods 0.000 abstract description 11
- 238000013270 controlled release Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000011324 bead Substances 0.000 abstract 1
- 238000002560 therapeutic procedure Methods 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 54
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 229920001249 ethyl cellulose Polymers 0.000 description 17
- 235000019325 ethyl cellulose Nutrition 0.000 description 17
- 239000001856 Ethyl cellulose Substances 0.000 description 15
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Natural products OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 14
- 239000008187 granular material Substances 0.000 description 13
- -1 polypropylene Polymers 0.000 description 13
- RGHAZVBIOOEVQX-UHFFFAOYSA-N Metoprolol succinate Chemical compound OC(=O)CCC(O)=O.COCCC1=CC=C(OCC(O)CNC(C)C)C=C1.COCCC1=CC=C(OCC(O)CNC(C)C)C=C1 RGHAZVBIOOEVQX-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 229960000939 metoprolol succinate Drugs 0.000 description 10
- 239000013047 polymeric layer Substances 0.000 description 8
- 229920003134 Eudragit® polymer Polymers 0.000 description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 7
- 229960002237 metoprolol Drugs 0.000 description 7
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 230000036470 plasma concentration Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000003405 delayed action preparation Substances 0.000 description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 4
- IUBSYMUCCVWXPE-UHFFFAOYSA-N metoprolol Chemical compound COCCC1=CC=C(OCC(O)CNC(C)C)C=C1 IUBSYMUCCVWXPE-UHFFFAOYSA-N 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- BRIPGNJWPCKDQZ-WXXKFALUSA-N (e)-but-2-enedioic acid;1-[4-(2-methoxyethyl)phenoxy]-3-(propan-2-ylamino)propan-2-ol Chemical compound OC(=O)\C=C\C(O)=O.COCCC1=CC=C(OCC(O)CNC(C)C)C=C1.COCCC1=CC=C(OCC(O)CNC(C)C)C=C1 BRIPGNJWPCKDQZ-WXXKFALUSA-N 0.000 description 2
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007903 gelatin capsule Substances 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 239000008101 lactose Substances 0.000 description 2
- 235000019359 magnesium stearate Nutrition 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229960002005 metoprolol fumarate Drugs 0.000 description 2
- 238000002663 nebulization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000825 pharmaceutical preparation Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- LOUPRKONTZGTKE-LHHVKLHASA-N quinidine Chemical compound C([C@H]([C@H](C1)C=C)C2)C[N@@]1[C@H]2[C@@H](O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-LHHVKLHASA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical group [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 102100028675 DNA polymerase subunit gamma-2, mitochondrial Human genes 0.000 description 1
- 229920003148 Eudragit® E polymer Polymers 0.000 description 1
- 229920003136 Eudragit® L polymer Polymers 0.000 description 1
- 229920003151 Eudragit® RL polymer Polymers 0.000 description 1
- 229920003152 Eudragit® RS polymer Polymers 0.000 description 1
- 229920003137 Eudragit® S polymer Polymers 0.000 description 1
- 208000018522 Gastrointestinal disease Diseases 0.000 description 1
- 101000837415 Homo sapiens DNA polymerase subunit gamma-2, mitochondrial Proteins 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000906446 Theraps Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 229960001138 acetylsalicylic acid Drugs 0.000 description 1
- 229960002213 alprenolol Drugs 0.000 description 1
- PAZJSJFMUHDSTF-UHFFFAOYSA-N alprenolol Chemical compound CC(C)NCC(O)COC1=CC=CC=C1CC=C PAZJSJFMUHDSTF-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- AVKUERGKIZMTKX-NJBDSQKTSA-N ampicillin Chemical compound C1([C@@H](N)C(=O)N[C@H]2[C@H]3SC([C@@H](N3C2=O)C(O)=O)(C)C)=CC=CC=C1 AVKUERGKIZMTKX-NJBDSQKTSA-N 0.000 description 1
- 229960000723 ampicillin Drugs 0.000 description 1
- NEDGUIRITORSKL-UHFFFAOYSA-N butyl 2-methylprop-2-enoate;2-(dimethylamino)ethyl 2-methylprop-2-enoate;methyl 2-methylprop-2-enoate Chemical compound COC(=O)C(C)=C.CCCCOC(=O)C(C)=C.CN(C)CCOC(=O)C(C)=C NEDGUIRITORSKL-UHFFFAOYSA-N 0.000 description 1
- 229950010118 cellacefate Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- LOUPRKONTZGTKE-UHFFFAOYSA-N cinchonine Natural products C1C(C(C2)C=C)CCN2C1C(O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011363 dried mixture Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009505 enteric coating Methods 0.000 description 1
- 239000002702 enteric coating Substances 0.000 description 1
- FSXVSUSRJXIJHB-UHFFFAOYSA-M ethyl prop-2-enoate;methyl 2-methylprop-2-enoate;trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CCOC(=O)C=C.COC(=O)C(C)=C.CC(=C)C(=O)OCC[N+](C)(C)C FSXVSUSRJXIJHB-UHFFFAOYSA-M 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 description 1
- 229940091250 magnesium supplement Drugs 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- DNKKLDKIFMDAPT-UHFFFAOYSA-N n,n-dimethylmethanamine;2-methylprop-2-enoic acid Chemical compound CN(C)C.CC(=C)C(O)=O.CC(=C)C(O)=O DNKKLDKIFMDAPT-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229940093429 polyethylene glycol 6000 Drugs 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 229960001404 quinidine Drugs 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009492 tablet coating Methods 0.000 description 1
- 239000002700 tablet coating Substances 0.000 description 1
- 238000011287 therapeutic dose Methods 0.000 description 1
- 231100001274 therapeutic index Toxicity 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000816 toxic dose Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229960002622 triacetin Drugs 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
- A61K9/2077—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
- A61K9/2081—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets with microcapsules or coated microparticles according to A61K9/50
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
- A61K9/5078—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings with drug-free core
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
含有若干覆盖有一种或多种药物活性化合物的不溶性的小珠的控制释放制剂,它的制备方法以及在需要控制释放药物活性化合物的治疗中的使用。
Description
本发明涉及具有药物活性化合物的控制释放的新药物制剂,此类制剂的制造方法以及获得药物活性化合物的控制释放的方法。
在医疗各种疾病中,例如在心血管、胃肠道和化疗方面,使所给药物在血中具有恒定的浓度是有好处的。因此需要从药物制剂中有控制地释放药物。
重要的是控制释放的制剂所释放出来的药物量,应能在整个治疗剂量期间维持相当的和稳定的效果。这通常意味着,药物的释放应该有恒定速率以使血液中的所给药物浓度保持稳定,这对于具有小治疗指数,即有效浓度与毒性浓度之间差别很小的药物特别重要。对于当在大的局部浓度存在时具有能引起胃肠道紊乱的潜在危险的局部刺激性药物或对于具有短排除半衰期的药物,药物的延缓和恒定释放也将是重要的。在排除半衰期短的药物中,控制释放的制剂比常规剂量形式给药次数较少,因此患者有较好的顺应性(参看Hayes R.B.等Clin.pharm.Therap.(1977年),22卷,125-130页)。
一个药物能通过任何给药途经用控制的方法进行释放,但该类制剂最好要具有某些共同的特征,例如提供有控制的和能重复产生的药物释放并有助于重复的吸收,没有毒性或没有刺激性的成分,并且也适宜于高剂量药物。
对于口服用药物,可以控制释放药物的体系的例子为不溶性基质类型的持续释放片剂,如DurulesR,和渗透活性片剂,即OROSR.OROSR体系在美国专利案号4,036,227中以及由英国Theeuwes F.等在Journal of Clinical Pharmacology(1985年),19卷,695-765页(补充部分)中曾有描述。它的主要部分是药物的片剂核心,核的周围包有钻一小孔的半渗透聚合物膜。联邦德国专利(DE-A-2030501)描述包含无定形二氧化硅的基质类型的制剂。活性化合物通过基质扩散释放出来。上述那些例子是单一单位体系,所有药物集中在一单位内,而本发明是多一单位原理。
从英国专利(GB-A-1542414)一种已知制剂含有一种与活性化合物物理地或化学地相结合的有机载体材料,以及一种与所述的支载体料相接触的玻璃材料。该玻璃含有可溶性的金属离子。药物的释放受控于离子交换作用引起的玻璃中金属离子的溶解作用。显然玻璃在该制剂中不是一个不溶性的惰性化合物。
包含大量小单位的制剂库的一些好处已在文献中描述。例如当粒子小于1-2毫米时有可能获得从胃进入小肠时可重复出现的单位排空(参看Bogentoft C.等:食物对于肠衣形式的乙酰水杨酸的吸收的影响,Europ.J.Clin.Pharmacol(1978年),14卷351-355页)。药物在胃肠道中大面积分散能够使总通过时间更具重现性,这对吸收过程是有利的(参看Edgar B。等:用检测血中和尿中稳定状态的水杨酸及其代谢物的水平比较两种肠衣乙酰水杨酸制剂。Biopharmaceu-tics & Drug Disposition。(1984年5卷251-260页)。此外当药物剂量在肠子中发散时,多单位制剂优于单一单位制剂。局部刺激的危险和由于消化道收缩引起的一些药量积聚也认为是较低的(参看McMahan F.G.等:补充氯化钾后刺激性药物的胃肠道损伤:一个控制的临床试验The Lancet,11月13日1059-1061页)。
多单位制剂的又一好处是它可以分成具有相同吸收性能的较小部分。这样,在选择剂量大小时,就可能有较大的灵活性。
本发明涉及一种可以控制释放一种或多种药物活性化合物的新型制剂。
该制剂由大量不溶性小粒子,即核心组成,这些核心表面被药物活性化合物复盖。核心的大小是0.1-2毫米,最好0.1-0.5毫米,由不溶性惰性材料组成。不溶性的意义是:该材料不溶于水,生理液体或一般用于静脉输注的液体内。不溶性惰性材料的例子有二氧化硅、玻璃或塑料树脂颗粒。塑料材料的适宜类型是可用于医药的塑料,如聚丙烯或聚乙烯,最好是聚丙烯。核心材料应该具有标准的大小和形状,最好是有平滑表面的球状。最好,核心材料应该具有足够高的密度,这可使它适合于流化床处理。更进一步,该核心材料要有高纯度也很重要,也就是说,不含可溶性的杂质。
药物活性化合物最好先配成溶液,再用喷雾法用于核心材料上。因此该活性化合物在不溶性核心上形成一个致密层。所用的药物活性化合物是具有心血管、胃肠道或化疗效应的药物,特别是肾上腺素β-阻断剂和抗生素。能用于核心材料上的适宜的药物活性化合物的例子有心得舒、美多心安、奎尼丁、镁和氨苄西林的盐。产生的颗粒或小珠的大小为0.2-3.0毫米,最好0.3-1.0毫米。然而对于大部分需要做成控制释放制剂的药物,只要它们能溶于某一溶剂并且此溶剂又能在干燥过程中除掉,都有可能按照上述方法制成控制释放制剂。
本发明的这些小珠是紧密的,这意味着孔隙度少于15%。
小珠用聚合物的膜包衣以限制和控制药物释放。聚合物的膜能根据不同的释放曲线图,例如PH相关的、肠包衣、PH无关的、要或不要延缓时间来释放药物。最重要的用途是在PH1-8范围内与PH无关的控制释放。适宜的聚合物的材料例子有乙基纤维素,羟丙基甲基纤维素羟丙基纤维素,邻苯二甲酸羟丙基甲基酯(例如HP55),乙酸邻苯二甲酸纤维素,EudragitRRL,EudragitRRS。乙基纤维素能单独使用或与例如水溶性的聚合物如羟丙基甲基纤维素合并使用,以调整包衣层的渗透性。
不同粘度等级的乙基纤维素都可以使用,在下面给出的例子中,使用了粘度为10、50或100厘泊的乙基纤维素,但其它类型的乙基纤维素也是适用的。
EudragitR是一些以丙烯酸树脂为基础的由Roehm pharma.生产的薄膜包衣物料的商品名称,例如Eudragit RL和RS是由丙烯酸酯和甲基丙烯酸酯合成的含少量季铵基团的共聚物。这些铵基团与其余中性的(甲基)丙烯酸酯的摩尔比,对EudragitRRL为1∶20,对EudragitRRS为1∶40,从而产生不同的渗透特性。其它能够使用的Eudragit变体有Eudragit L、Eudragit S和Eudragit E。
为了改良膜的工艺性质或修改释放特征,在聚合物的溶液中可以加色素和/或增塑剂。可以使用的增塑剂的例子是柠檬酸酯、乙酰化单甘油酯和甘油三乙酸酯。
新制剂有若干优点,例如颗粒含有高百分数的活性成分,且不受可溶性的惰性化合物污染,例如乳糖或糖的核心用治疗用的活性化合物包衣正是这个情况。当制剂用于非肠道给药时这一点特别重要。
用小的致密颗粒例如二氧化硅作为核心材料,有可能获得具有高浓度活性化合物的小珠(粒剂),这对于高剂量制剂是个优点,例如氯化镁。
新制剂的一个优点是:包裹用活性化合物复盖的不溶性核心与包裹具有可溶性核心材料的制剂,二者相比较时,为了延缓药物释放,一般来说,前者需要较少的聚合物材料(参看图1)。按照本发明的制剂能以各种途径给药,例如口服或非肠道给药。一个静脉给药的例子是通过在欧洲专利(EP-Bl-59694)中描述的药物给予装置给药的。
当把本发明的活性化合物包衣小珠用于口服时,有可能将制剂加工成颗粒填入硬明胶胶囊、填入小药囊中或加工成片剂而给药后仍然可以得到所希望的血浆浓度曲线和持续有效时间。
当小珠做成片剂时,它们与含有微晶维素(如AvicelR)的添加剂混合,这样改进压片的性能,并促进片剂的崩解,释放出单个的小珠。
利用本发明,可能在减少给药次数时,而在下次给药前的整个期间血浆中仍具有几乎恒定的药物浓度。用新制剂常常是一天一个单剂
控制释放制剂的制造方法是本发明的另一方面。药物活性化合物溶于合适的溶剂例如二氯甲烷、乙醇、异丙醇或水中,并在包衣盘中喷到不溶性的核心材料上面或最好在流化床中喷施,干燥除去溶剂。然后将得到的小珠用上述聚合物层包衣。聚合物的混合物溶于溶剂如乙醇、异丙醇和/或二氯甲烷中。喷雾可以在包衣盘中进行,但最好在流化床中进行。乙基纤维素也可通过水分散体系(乳液)喷施。
当需要有控制地和恒定地释放治疗用活性化合物时,本发明的制剂是特别有利的。关于治疗用活性化合物的控制释放的方法是本发明的又一方面。
通过下列实施例对本发明进行详细说明:
例1
核心
美多心安反丁烯二酸盐 1440克
二氯甲烷 9618克
乙醇95% 3888克
SiO2(0.15-0.25毫米) 375克
聚合物层
乙基纤维素10厘泊 265.6克
羟丙基甲基纤维素 58.4克
柠檬酸乙酰基三丁基酯 36.0克
二氯甲烷 6141克
异丙醇 1544克
在流化床成粒机中将美多心安反丁烯二酸盐的95%乙醇溶液喷施到二氧化硅核心上。这样形成的小珠400克(0.4-0.63毫米部分)用含有10厘泊乙基纤维素、羟丙基甲基纤维素和柠檬酸乙酰基三丁基酯的聚合物溶液覆盖,复盖方法是将上述物质的二氯甲烷和异丙醇溶液喷施在上述400克小珠上。然后将包衣的小珠填入硬明胶胶囊中。
例2-3和参考例1
核心
2 3 参考例1
美多心安琥珀酸盐 1440克 1440克 1440克
二氯甲烷 9618克 9618克 9618克
乙醇95% 3888克 3888克 3888克
SiO2(0.15-0.25毫米) 375克
玻璃(0.2毫米) 375克
NaCl(0.15-0.25毫米) 375克
聚合物层
400克上面的颗粒(0.4-0.5毫米部分)用下列物质的组合物包衣
乙基纤维素10厘泊 52.3克
柠檬酸乙酰基三丁基酯 8.6克
二氯甲烷 1111克
异丙醇 218克
美多心安琥珀酸盐的95%乙醇和二氯甲烷溶液,分别喷雾到二氧化硅、玻璃和氯化钠核心上。这样形成的小珠用喷雾法,含有粘度为10厘泊的乙基纤维素和柠檬酸乙酰基三丁基酯的二氯甲烷和异丙醇溶液包衣。图1说明在20小时期间内美多心安琥珀酸盐的累积释放情况。从图中可以看到,当活性化合物用于二氧化硅或玻璃上时,活性化合物可以控制地和几乎恒定地释放,而可溶性氯化钠的核心,产生相当高的起始释放速率,图2(下面参考例2)也说明了这一点,该例是用可溶性氯化钾作为核心材料。
参考例2
核心
美多心安琥珀酸盐 2000克
KCl(0.1-0.2毫米) 400克
二氯甲烷 13360克
乙醇95% 7900克
参考例2的400克颗粒用包括下列聚合物的组合物包衣:
聚合物层
乙基纤维素10厘泊 135.3克
EudragitRRS 27.4克
柠檬酸乙酰基三丁基酯 27.4克
二氯甲烷 4469克
异丙醇 661克
该颗粒按前面例子中所述方法加工。
例4-6
核心 例
4 5 6
美多心安琥珀酸盐 1440克 1440克 1440克
二氯甲烷 9618克 9618克 9618克
乙醇95% 3888克 3888克 3888克
SiO2(0.15-0.2毫米) 375克
SiO2(0.25-0.3毫米) 375克
SiO2(0.4-0.5毫米) 375克
按照例4-6的400克颗粒以包括下列聚合物的组合物包衣:
聚合物层
按照下面各例制成颗粒
4 5 6
乙基纤维素10厘泊 187.2克 144.0克 92.2克
羟丙基甲基纤维素 46.8克 36.0克 23.0克
柠檬酸乙酰基三丁基酯 26.0克 20.0克 12.8克
二氯甲烷 4428克 3408克 2168克
异丙醇 1114克 858克 546克
该制剂按照上述方法加工。在表Ⅰ中给出美多心安琥珀酸盐在20小时期间内的释放。所有制剂都在长时间内使药物得以控制释放。
例7
核心
氯化镁,六水合物 1100克
乙醇99.5% 6200克
二氧化硅(0.15-0.30毫米) 400克
聚合物层
乙基纤维素50厘泊 533克
二氯甲烷 14107克
异丙醇 5481克
将氯化镁(MgCl2)的99.5%乙醇溶液喷雾到二氧化硅的核心上。400克这样形成的小珠通过粘度为50厘泊的乙基纤维素的二氯甲烷-异丙醇溶液包衣,得到含有347毫克/克氯化镁(MgCl2)的颗粒。在体外,1小时后药物释放为38%,2小时后为58%和6小时后为82%。
例8
核心
氨苄西林-Na 600克
乙醇95% 894克
纯净水 1020克
玻璃(0.5毫米) 500克
聚合物层
乙基纤维素100厘泊 15克
二氯甲烷 600克
异丙醇 150克
氨苄西林-Na的乙醇/水溶液喷雾到玻璃核心上,然后将500克的氨苄西林-Na小珠用100厘泊乙基纤维素的二氯甲烷/异丙醇的聚合物溶液包衣。在体外溶解40分钟后,药物含量的50%从小珠中释放出来。
例9
核心
美多心安琥珀酸盐 1440克
二氯甲烷 9618克
乙醇95% 3888克
SiO2(0.15-0.25毫米) 375克
聚合物层
乙基纤维素N-10 166.2克
羟丙基甲基纤维素 39.0克
柠檬酸乙酰基三丁基酯 22.8克
二氯甲烷 3889克
异丙醇 978克
片剂添加剂
微晶纤维素 429.3克
玉米淀粉 67.1克
乳糖粉 40.3克
聚乙烯吡咯酮(polyvidone) 55.5克
纯净水 314.7克
硬脂酸镁 1.2克
片剂包衣(12,500片)
羟丙基甲基纤维素6厘泊 159.6克
聚乙二醇6000 39.9克
染料二氧化钛 39.9克
纯净水 1356克
石蜡 1.6克
按照前面例子中描述的过程将美多心安琥珀酸盐喷雾到二氧化硅的核心上。这样得到的400克小珠(0.4-0.63毫米部分)用上述聚合物溶液包衣。美多心安琥珀酸盐的包衣小珠与添加剂等份混合,在加入0.1%硬脂酸镁后,干燥的混合物压制成片,最后该片子在包衣盘中用上述聚合物溶液包衣。
用很小的致密的SiO2颗粒(0.15-0.25毫米)作核心材料,有助于在形成的小珠(0.4-0.63毫米)中有很高的药物含量,因此减小了最后制剂的体积。
表1总结了例1-6和9及参考例1和2的制剂的药物释放数据。
生物药剂学研究
本发明的口服应用(例9)说明于图3。为了寻找每日一次剂量并在24小时内有稳定的血浆浓度,将多单位体系用于美多心安琥珀酸盐。
将含有单剂量的190毫克美多心安琥珀酸盐(相当于200毫克美多心安酒石酸盐)的本发明的控制释放制剂给予10个健康的男性受试者。所述美多心安的血浆浓度与用单剂量的持续释放片剂(Durules
)之后的血浆浓度比较(该持续释放片剂是根据不溶性基质原理含有200毫克美多心安酒石酸盐制成的)。可以看到,按照本发明的制剂给出几乎不变的美多心安的血浆浓度,而基质片剂在给药后的最初几小时内血浆浓度有一个所不希望有的高峰。
实行本发明的最好模式在目前认为是例9。
表1.在磷酸盐缓冲液PH6.8中美多心安的体外累积释放方法:USP仪器 NOⅡ,旋转桨100转/分
Claims (12)
1、用控制药物释放的膜包衣的控制释放的小珠,其特征在于它们含有一和或多种药物活性化合物,这些化合物用于紧密的不溶的核心材料上,从而该活性化合物在不溶性核心上形成一紧密层,此紧密层上再覆盖以控制释放的聚合物的膜。
2、根据权利要求1的小珠,其特征在于核心材料的颗粒大小为0.1-2毫米,而用药物活性化合物复盖了的核心大小为0.2-3.0毫米。
3、根据权利要求2的小珠,其特征在于核心材料大小为0.1-0.5毫米,而用药物活性化合物复盖了的所述核心材料大小为0.3-1.0毫米。
4、根据权利要求1的小珠,其特征在于核心材料是二氧化硅。
5、根据权利要求1的小珠,其特征在于核心材料是小颗粒的玻璃。
6、根据权利要求1的小珠,其特征在于小珠中含有一种希望不立即释放的药物活性化合物。
7、根据权利要求1的小珠,其特征在于药物活性化合物是以口服或非肠道给药。
8、根据权利要求1的小珠,其特征在于药物活性化合物是用于心血管、胃肠道或化疗方面。
9、根据权利要求1的小珠,其特征在于药物活性化合物是肾上腺素β-阻断剂的盐。
10、根据权利要求1的小珠,其特征在于药物活性化合物是抗生素。
11、生产控制释放产品时用的小珠的制备方法,其特征在于溶于溶剂的药物活性化合物应用到大小为0.1-2毫米的不溶性核心材料上,干燥除去溶剂,小珠得到用活性化合物的紧密层复盖的,具有0.2-3.0毫米大小的小珠,而后,得到的小珠再用控制释放的聚合物的膜复盖。
12、实现治疗用活性化合物的控制释放的方法,其特征在于将根据权利要求1的制剂给予需要所述治疗用的活性化合物控制释放的患者。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8504720A SE450087B (sv) | 1985-10-11 | 1985-10-11 | Korn med kontrollerad frisettning av farmaceutiskt aktiva emnen som anbringats teckande pa ett kompakt olosligt kernmaterial |
SE8504720-7 | 1985-10-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN86106651A true CN86106651A (zh) | 1987-04-15 |
CN1025283C CN1025283C (zh) | 1994-07-06 |
Family
ID=20361705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN86106651A Expired - Lifetime CN1025283C (zh) | 1985-10-11 | 1986-10-11 | 生产控制释放产品时用的小珠的制备方法 |
Country Status (24)
Country | Link |
---|---|
US (1) | US4927640A (zh) |
EP (1) | EP0277127B1 (zh) |
JP (1) | JP2560019B2 (zh) |
KR (1) | KR940000098B1 (zh) |
CN (1) | CN1025283C (zh) |
AU (1) | AU593038B2 (zh) |
CS (1) | CS268819B2 (zh) |
CY (1) | CY1764A (zh) |
DD (1) | DD266734A5 (zh) |
DK (1) | DK175592B1 (zh) |
ES (1) | ES2003139A6 (zh) |
FI (1) | FI97686C (zh) |
GR (1) | GR862526B (zh) |
HU (1) | HU199677B (zh) |
IE (1) | IE58967B1 (zh) |
IS (1) | IS1530B (zh) |
NZ (1) | NZ217697A (zh) |
PH (1) | PH24739A (zh) |
PL (1) | PL148624B1 (zh) |
PT (1) | PT83508B (zh) |
SE (1) | SE450087B (zh) |
SU (1) | SU1706373A3 (zh) |
WO (1) | WO1987002240A1 (zh) |
ZA (1) | ZA866861B (zh) |
Families Citing this family (151)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5270056A (en) * | 1985-10-25 | 1993-12-14 | Aktiebolaget Hassle | Particle having a dyed coke indicator and a pharmaceutical coating for parenteral administration of the pharmaceutical |
GB8707416D0 (en) * | 1987-03-27 | 1987-04-29 | Wellcome Found | Pharmaceutical formulations |
US5612059A (en) * | 1988-08-30 | 1997-03-18 | Pfizer Inc. | Use of asymmetric membranes in delivery devices |
US5876752A (en) * | 1990-08-07 | 1999-03-02 | Pfizer Inc. | Use of interfacially-polymerized membranes in delivery devices |
US5102668A (en) * | 1990-10-05 | 1992-04-07 | Kingaform Technology, Inc. | Sustained release pharmaceutical preparation using diffusion barriers whose permeabilities change in response to changing pH |
DE4333190C2 (de) * | 1993-09-29 | 1996-05-30 | Korsatko Werner Univ Prof Dr E | Zerbeißtablette mit verzögerter Wirkstoff-Freisetzung |
AU697456B2 (en) * | 1994-06-15 | 1998-10-08 | Dumex-Alpharma A/S | Pellets |
SE9402431D0 (sv) * | 1994-07-08 | 1994-07-08 | Astra Ab | New tablet formulation |
EP0723436B1 (en) * | 1994-07-08 | 2001-09-26 | AstraZeneca AB | Multiple unit tableted dosage form i |
SE9402422D0 (sv) * | 1994-07-08 | 1994-07-08 | Astra Ab | New beads for controlled release and a pharmaceutical preparation containing the same |
SE9500422D0 (sv) * | 1995-02-06 | 1995-02-06 | Astra Ab | New oral pharmaceutical dosage forms |
SE512835C2 (sv) * | 1996-01-08 | 2000-05-22 | Astrazeneca Ab | Doseringsform innehållande en mångfald enheter alla inneslutande syralabil H+K+ATPas-hämmare |
SE9600072D0 (sv) * | 1996-01-08 | 1996-01-08 | Astra Ab | New oral formulation of two active ingredients II |
SE9600070D0 (sv) | 1996-01-08 | 1996-01-08 | Astra Ab | New oral pharmaceutical dosage forms |
SE9600071D0 (sv) | 1996-01-08 | 1996-01-08 | Astra Ab | New oral formulation of two active ingredients I |
SE9702338D0 (sv) * | 1997-06-18 | 1997-06-18 | Astra Ab | An analytical method and industrial process including the same |
SE9702533D0 (sv) | 1997-07-01 | 1997-07-01 | Astra Ab | New oral formulation |
US6328994B1 (en) * | 1998-05-18 | 2001-12-11 | Takeda Chemical Industries, Ltd. | Orally disintegrable tablets |
TWI257311B (en) | 1998-07-28 | 2006-07-01 | Takeda Chemical Industries Ltd | Rapidly disintegrable solid preparation |
WO2000038686A1 (en) * | 1998-12-24 | 2000-07-06 | Janssen Pharmaceutica N.V. | Controlled release galantamine composition |
US6555139B2 (en) | 1999-06-28 | 2003-04-29 | Wockhardt Europe Limited | Preparation of micron-size pharmaceutical particles by microfluidization |
US6245913B1 (en) | 1999-06-30 | 2001-06-12 | Wockhardt Europe Limited | Synthetic procedure for 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methylthio]-IH-benzimidazole hydrochloride and its conversion to omeprazole |
AU1556000A (en) * | 1999-11-22 | 2001-06-04 | Akzo Nobel N.V. | Composition allowing predefined and controlled release of active ingredient, preparation thereof and use |
SE0100200D0 (sv) * | 2001-01-24 | 2001-01-24 | Astrazeneca Ab | New film coating |
SE0100824D0 (sv) * | 2001-03-09 | 2001-03-09 | Astrazeneca Ab | Method III to obtain microparticles |
DE20220902U1 (de) * | 2001-12-19 | 2004-06-09 | Astrazeneca Ab | Neuer Filmüberzug |
AU2003230805A1 (en) * | 2002-04-05 | 2003-10-27 | Penwest Pharmaceuticals Co. | Sustained release metoprolol formulations |
ES2268384T3 (es) | 2002-06-17 | 2007-03-16 | Tyco Healthcare Group Lp | Estructuras anulares de soporte. |
US20040208932A1 (en) * | 2003-04-17 | 2004-10-21 | Ramachandran Thembalath | Stabilized paroxetine hydrochloride formulation |
WO2004112756A1 (en) * | 2003-06-26 | 2004-12-29 | Isa Odidi | Proton pump-inhibitor-containing capsules which comprise subunits differently structured for a delayed release of the active ingredient |
US7314640B2 (en) * | 2003-07-11 | 2008-01-01 | Mongkol Sriwongjanya | Formulation and process for drug loaded cores |
US20050032879A1 (en) * | 2003-08-07 | 2005-02-10 | Temple Okarter | Formulations and use of a beta-blocker and an ACE-inhibitor for the treatment of cardiovascular diseases |
WO2005077331A1 (en) * | 2004-02-11 | 2005-08-25 | Athpharma Limited | Chronotherapeutic compositions and methods of their use |
US8394409B2 (en) * | 2004-07-01 | 2013-03-12 | Intellipharmaceutics Corp. | Controlled extended drug release technology |
US10624858B2 (en) | 2004-08-23 | 2020-04-21 | Intellipharmaceutics Corp | Controlled release composition using transition coating, and method of preparing same |
US7938307B2 (en) | 2004-10-18 | 2011-05-10 | Tyco Healthcare Group Lp | Support structures and methods of using the same |
US7845536B2 (en) | 2004-10-18 | 2010-12-07 | Tyco Healthcare Group Lp | Annular adhesive structure |
US9364229B2 (en) | 2005-03-15 | 2016-06-14 | Covidien Lp | Circular anastomosis structures |
WO2007036952A2 (en) | 2005-07-01 | 2007-04-05 | Rubicon Research Pvt Ltd. | Novel sustained release dosage form |
US20070009589A1 (en) * | 2005-07-07 | 2007-01-11 | Kandarapu Raghupathi | Extended release compositions |
PL1915137T3 (pl) | 2005-08-10 | 2014-03-31 | Add Advanced Drug Delivery Tech Ltd | Preparat doustny o kontrolowanym uwalnianiu |
US20070053983A1 (en) * | 2005-09-06 | 2007-03-08 | Girish Jain | Extended release compositions of metoprolol succinate |
US10064828B1 (en) | 2005-12-23 | 2018-09-04 | Intellipharmaceutics Corp. | Pulsed extended-pulsed and extended-pulsed pulsed drug delivery systems |
US9629626B2 (en) | 2006-02-02 | 2017-04-25 | Covidien Lp | Mechanically tuned buttress material to assist with proper formation of surgical element in diseased tissue |
US20090068260A1 (en) * | 2006-02-24 | 2009-03-12 | Tomer Gold | Beta-1-selective adrenoceptor blocking agent compositions and methods for their preparation |
US20070202172A1 (en) * | 2006-02-24 | 2007-08-30 | Tomer Gold | Metoprolol succinate E.R. tablets and methods for their preparation |
US7793813B2 (en) * | 2006-02-28 | 2010-09-14 | Tyco Healthcare Group Lp | Hub for positioning annular structure on a surgical device |
US9561188B2 (en) * | 2006-04-03 | 2017-02-07 | Intellipharmaceutics Corporation | Controlled release delivery device comprising an organosol coat |
US10960077B2 (en) | 2006-05-12 | 2021-03-30 | Intellipharmaceutics Corp. | Abuse and alcohol resistant drug composition |
CA2657202A1 (en) * | 2006-07-28 | 2008-01-31 | Farmaprojects, S.A. | Extended release pharmaceutical formulation of metoprolol and process for its preparation |
US7845533B2 (en) | 2007-06-22 | 2010-12-07 | Tyco Healthcare Group Lp | Detachable buttress material retention systems for use with a surgical stapling device |
US8028883B2 (en) | 2006-10-26 | 2011-10-04 | Tyco Healthcare Group Lp | Methods of using shape memory alloys for buttress attachment |
US20080107726A1 (en) * | 2006-11-01 | 2008-05-08 | Pramod Kharwade | Compositions comprising beta-adrenergic receptor antagonists and diuretics |
CA2680148C (en) | 2007-03-06 | 2015-09-01 | Tyco Healthcare Group Lp | Surgical stapling apparatus |
US8038045B2 (en) | 2007-05-25 | 2011-10-18 | Tyco Healthcare Group Lp | Staple buttress retention system |
US7665646B2 (en) | 2007-06-18 | 2010-02-23 | Tyco Healthcare Group Lp | Interlocking buttress material retention system |
US8062330B2 (en) | 2007-06-27 | 2011-11-22 | Tyco Healthcare Group Lp | Buttress and surgical stapling apparatus |
WO2009137648A1 (en) * | 2008-05-09 | 2009-11-12 | Aptapharma, Inc. | Multilayer proton pump inhibitor tablets |
US20090280173A1 (en) * | 2008-05-09 | 2009-11-12 | Ishwar Chauhan | Multilayer Omeprazole Tablets |
US20100147921A1 (en) * | 2008-12-16 | 2010-06-17 | Lee Olson | Surgical Apparatus Including Surgical Buttress |
US9486215B2 (en) | 2009-03-31 | 2016-11-08 | Covidien Lp | Surgical stapling apparatus |
US8016178B2 (en) | 2009-03-31 | 2011-09-13 | Tyco Healthcare Group Lp | Surgical stapling apparatus |
US7967179B2 (en) | 2009-03-31 | 2011-06-28 | Tyco Healthcare Group Lp | Center cinch and release of buttress material |
CA2769760A1 (en) | 2009-07-31 | 2011-02-03 | Ranbaxy Laboratories Limited | Multi-layered, multiple unit pharmaceutical compositions |
US8157151B2 (en) | 2009-10-15 | 2012-04-17 | Tyco Healthcare Group Lp | Staple line reinforcement for anvil and cartridge |
US9693772B2 (en) | 2009-10-15 | 2017-07-04 | Covidien Lp | Staple line reinforcement for anvil and cartridge |
US10842485B2 (en) | 2009-10-15 | 2020-11-24 | Covidien Lp | Brachytherapy buttress |
US20150231409A1 (en) | 2009-10-15 | 2015-08-20 | Covidien Lp | Buttress brachytherapy and integrated staple line markers for margin identification |
US10293553B2 (en) | 2009-10-15 | 2019-05-21 | Covidien Lp | Buttress brachytherapy and integrated staple line markers for margin identification |
US9610080B2 (en) | 2009-10-15 | 2017-04-04 | Covidien Lp | Staple line reinforcement for anvil and cartridge |
IL210279A0 (en) | 2009-12-25 | 2011-03-31 | Dexcel Pharma Technologies Ltd | Extended release compositions for high solubility, high permeability acdtive pharmaceutical ingredients |
GB2479213B (en) | 2010-04-01 | 2013-07-10 | Theravida Inc | Pharmaceutical formulations for the treatment of overactive bladder |
US9084602B2 (en) * | 2011-01-26 | 2015-07-21 | Covidien Lp | Buttress film with hemostatic action for surgical stapling apparatus |
US8479968B2 (en) | 2011-03-10 | 2013-07-09 | Covidien Lp | Surgical instrument buttress attachment |
US8789737B2 (en) | 2011-04-27 | 2014-07-29 | Covidien Lp | Circular stapler and staple line reinforcement material |
CN103813792B (zh) | 2011-05-10 | 2015-11-25 | 塞拉维达公司 | 用于治疗膀胱过度活动症的索利那新和唾液刺激剂的组合 |
US9675351B2 (en) | 2011-10-26 | 2017-06-13 | Covidien Lp | Buttress release from surgical stapler by knife pushing |
US8584920B2 (en) | 2011-11-04 | 2013-11-19 | Covidien Lp | Surgical stapling apparatus including releasable buttress |
US9010608B2 (en) | 2011-12-14 | 2015-04-21 | Covidien Lp | Releasable buttress retention on a surgical stapler |
US8967448B2 (en) | 2011-12-14 | 2015-03-03 | Covidien Lp | Surgical stapling apparatus including buttress attachment via tabs |
US9237892B2 (en) | 2011-12-14 | 2016-01-19 | Covidien Lp | Buttress attachment to the cartridge surface |
US9113885B2 (en) | 2011-12-14 | 2015-08-25 | Covidien Lp | Buttress assembly for use with surgical stapling device |
US9351732B2 (en) | 2011-12-14 | 2016-05-31 | Covidien Lp | Buttress attachment to degradable polymer zones |
US9351731B2 (en) | 2011-12-14 | 2016-05-31 | Covidien Lp | Surgical stapling apparatus including releasable surgical buttress |
US9326773B2 (en) | 2012-01-26 | 2016-05-03 | Covidien Lp | Surgical device including buttress material |
US9010612B2 (en) | 2012-01-26 | 2015-04-21 | Covidien Lp | Buttress support design for EEA anvil |
US9010609B2 (en) | 2012-01-26 | 2015-04-21 | Covidien Lp | Circular stapler including buttress |
US9931116B2 (en) | 2012-02-10 | 2018-04-03 | Covidien Lp | Buttress composition |
US8820606B2 (en) | 2012-02-24 | 2014-09-02 | Covidien Lp | Buttress retention system for linear endostaplers |
US9572576B2 (en) | 2012-07-18 | 2017-02-21 | Covidien Lp | Surgical apparatus including surgical buttress |
US20140048580A1 (en) | 2012-08-20 | 2014-02-20 | Covidien Lp | Buttress attachment features for surgical stapling apparatus |
US9161753B2 (en) | 2012-10-10 | 2015-10-20 | Covidien Lp | Buttress fixation for a circular stapler |
US20140131418A1 (en) | 2012-11-09 | 2014-05-15 | Covidien Lp | Surgical Stapling Apparatus Including Buttress Attachment |
US9192384B2 (en) | 2012-11-09 | 2015-11-24 | Covidien Lp | Recessed groove for better suture retention |
US9681936B2 (en) | 2012-11-30 | 2017-06-20 | Covidien Lp | Multi-layer porous film material |
US9295466B2 (en) | 2012-11-30 | 2016-03-29 | Covidien Lp | Surgical apparatus including surgical buttress |
US9402627B2 (en) | 2012-12-13 | 2016-08-02 | Covidien Lp | Folded buttress for use with a surgical apparatus |
US9204881B2 (en) | 2013-01-11 | 2015-12-08 | Covidien Lp | Buttress retainer for EEA anvil |
US9433420B2 (en) | 2013-01-23 | 2016-09-06 | Covidien Lp | Surgical apparatus including surgical buttress |
US9192383B2 (en) | 2013-02-04 | 2015-11-24 | Covidien Lp | Circular stapling device including buttress material |
US9414839B2 (en) | 2013-02-04 | 2016-08-16 | Covidien Lp | Buttress attachment for circular stapling device |
JP2016507576A (ja) | 2013-02-13 | 2016-03-10 | エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングEvonik Roehm GmbH | 多数の2種類のペレットを含む多粒子医薬組成物 |
US9504470B2 (en) | 2013-02-25 | 2016-11-29 | Covidien Lp | Circular stapling device with buttress |
US20140239047A1 (en) | 2013-02-28 | 2014-08-28 | Covidien Lp | Adherence concepts for non-woven absorbable felt buttresses |
US9782173B2 (en) | 2013-03-07 | 2017-10-10 | Covidien Lp | Circular stapling device including buttress release mechanism |
US9655620B2 (en) | 2013-10-28 | 2017-05-23 | Covidien Lp | Circular surgical stapling device including buttress material |
AU2014246617A1 (en) | 2013-12-23 | 2015-07-09 | Sun Pharmaceutical Industries Limited | Multi-layered, multiple unit pharmaceutical compositions |
US9844378B2 (en) | 2014-04-29 | 2017-12-19 | Covidien Lp | Surgical stapling apparatus and methods of adhering a surgical buttress thereto |
RU2585023C1 (ru) * | 2014-12-18 | 2016-05-27 | Общество с ограниченной ответственностью "Нанолек" | Способ гранулирования |
US10835216B2 (en) | 2014-12-24 | 2020-11-17 | Covidien Lp | Spinneret for manufacture of melt blown nonwoven fabric |
US10470767B2 (en) | 2015-02-10 | 2019-11-12 | Covidien Lp | Surgical stapling instrument having ultrasonic energy delivery |
EP3291745A4 (en) | 2015-04-10 | 2019-02-13 | Covidien LP | SURGICAL CLAMP DEVICE WITH INTEGRATED BUBBLE |
JP6841834B2 (ja) | 2016-01-20 | 2021-03-10 | テラヴィダ, インコーポレイテッドTheraVida, Inc. | 多汗症の処置のための方法および組成物 |
US10959731B2 (en) | 2016-06-14 | 2021-03-30 | Covidien Lp | Buttress attachment for surgical stapling instrument |
US11026686B2 (en) | 2016-11-08 | 2021-06-08 | Covidien Lp | Structure for attaching buttress to anvil and/or cartridge of surgical stapling instrument |
US10874768B2 (en) | 2017-01-20 | 2020-12-29 | Covidien Lp | Drug eluting medical device |
US10925607B2 (en) | 2017-02-28 | 2021-02-23 | Covidien Lp | Surgical stapling apparatus with staple sheath |
US10368868B2 (en) | 2017-03-09 | 2019-08-06 | Covidien Lp | Structure for attaching buttress material to anvil and cartridge of surgical stapling instrument |
US11096610B2 (en) | 2017-03-28 | 2021-08-24 | Covidien Lp | Surgical implants including sensing fibers |
US10849625B2 (en) | 2017-08-07 | 2020-12-01 | Covidien Lp | Surgical buttress retention systems for surgical stapling apparatus |
US10945733B2 (en) | 2017-08-23 | 2021-03-16 | Covidien Lp | Surgical buttress reload and tip attachment assemblies for surgical stapling apparatus |
US11141151B2 (en) | 2017-12-08 | 2021-10-12 | Covidien Lp | Surgical buttress for circular stapling |
US11065000B2 (en) | 2018-02-22 | 2021-07-20 | Covidien Lp | Surgical buttresses for surgical stapling apparatus |
US10758237B2 (en) | 2018-04-30 | 2020-09-01 | Covidien Lp | Circular stapling apparatus with pinned buttress |
US11432818B2 (en) | 2018-05-09 | 2022-09-06 | Covidien Lp | Surgical buttress assemblies |
US11426163B2 (en) | 2018-05-09 | 2022-08-30 | Covidien Lp | Universal linear surgical stapling buttress |
US11284896B2 (en) | 2018-05-09 | 2022-03-29 | Covidien Lp | Surgical buttress loading and attaching/detaching assemblies |
US11219460B2 (en) | 2018-07-02 | 2022-01-11 | Covidien Lp | Surgical stapling apparatus with anvil buttress |
US10806459B2 (en) | 2018-09-14 | 2020-10-20 | Covidien Lp | Drug patterned reinforcement material for circular anastomosis |
US10952729B2 (en) | 2018-10-03 | 2021-03-23 | Covidien Lp | Universal linear buttress retention/release assemblies and methods |
US11730472B2 (en) | 2019-04-25 | 2023-08-22 | Covidien Lp | Surgical system and surgical loading units thereof |
US11478245B2 (en) | 2019-05-08 | 2022-10-25 | Covidien Lp | Surgical stapling device |
US11596403B2 (en) | 2019-05-08 | 2023-03-07 | Covidien Lp | Surgical stapling device |
US11969169B2 (en) | 2019-09-10 | 2024-04-30 | Covidien Lp | Anvil buttress loading unit for a surgical stapling apparatus |
US11571208B2 (en) | 2019-10-11 | 2023-02-07 | Covidien Lp | Surgical buttress loading units |
US11523824B2 (en) | 2019-12-12 | 2022-12-13 | Covidien Lp | Anvil buttress loading for a surgical stapling apparatus |
US11547407B2 (en) | 2020-03-19 | 2023-01-10 | Covidien Lp | Staple line reinforcement for surgical stapling apparatus |
US11337699B2 (en) | 2020-04-28 | 2022-05-24 | Covidien Lp | Magnesium infused surgical buttress for surgical stapler |
US11707276B2 (en) | 2020-09-08 | 2023-07-25 | Covidien Lp | Surgical buttress assemblies and techniques for surgical stapling |
US11399833B2 (en) | 2020-10-19 | 2022-08-02 | Covidien Lp | Anvil buttress attachment for surgical stapling apparatus |
US11534170B2 (en) | 2021-01-04 | 2022-12-27 | Covidien Lp | Anvil buttress attachment for surgical stapling apparatus |
US11510670B1 (en) | 2021-06-23 | 2022-11-29 | Covidien Lp | Buttress attachment for surgical stapling apparatus |
US11596399B2 (en) | 2021-06-23 | 2023-03-07 | Covidien Lp | Anvil buttress attachment for surgical stapling apparatus |
US11672538B2 (en) | 2021-06-24 | 2023-06-13 | Covidien Lp | Surgical stapling device including a buttress retention assembly |
US11678879B2 (en) | 2021-07-01 | 2023-06-20 | Covidien Lp | Buttress attachment for surgical stapling apparatus |
US11684368B2 (en) | 2021-07-14 | 2023-06-27 | Covidien Lp | Surgical stapling device including a buttress retention assembly |
US12076013B2 (en) | 2021-08-03 | 2024-09-03 | Covidien Lp | Surgical buttress attachment assemblies for surgical stapling apparatus |
US11801052B2 (en) | 2021-08-30 | 2023-10-31 | Covidien Lp | Assemblies for surgical stapling instruments |
US11751875B2 (en) | 2021-10-13 | 2023-09-12 | Coviden Lp | Surgical buttress attachment assemblies for surgical stapling apparatus |
US11806017B2 (en) | 2021-11-23 | 2023-11-07 | Covidien Lp | Anvil buttress loading system for surgical stapling apparatus |
WO2023164113A1 (en) | 2022-02-24 | 2023-08-31 | Covidien Lp | Surgical medical devices |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH532038A (de) * | 1970-05-25 | 1972-12-31 | Ciba Geigy Ag | Verfahren zur Herstellung von neuen Cycloheptenderivaten |
US3951821A (en) * | 1972-07-14 | 1976-04-20 | The Dow Chemical Company | Disintegrating agent for tablets |
US4123382A (en) * | 1973-05-25 | 1978-10-31 | Merck & Co., Inc. | Method of microencapsulation |
SE418247B (sv) * | 1975-11-17 | 1981-05-18 | Haessle Ab | Sett att framstella kroppar med reglerad frigoring av en aktiv komponent |
US4291016A (en) * | 1976-07-27 | 1981-09-22 | Sandoz Ltd. | Enteric coated mixture of 4-(2-hydroxy-3-isopropylamino-propoxy) indole and sodium lauryl sulphate |
GB1542414A (en) * | 1976-08-19 | 1979-03-21 | Standard Telephones Cables Ltd | Arrangements for the controlled release of biologically active materials |
DE2642032C2 (de) * | 1976-09-18 | 1987-04-30 | Rupprecht, Herbert, Prof. Dr., 8400 Regensburg | Verfahren zur Inkorporierung von Wirkstoffen in siliciumdioxidhaltige Trägermaterialien und eine siliciumdioxidhaltige Zubereitung |
GB1576376A (en) * | 1977-03-30 | 1980-10-08 | Benzon As Alfred | Multiple-unit drug dose |
US4256108A (en) * | 1977-04-07 | 1981-03-17 | Alza Corporation | Microporous-semipermeable laminated osmotic system |
SE426548B (sv) * | 1978-12-05 | 1983-01-31 | Haessle Ab | Fast farmaceutisk beredning innehallande en terapeutiskt effektiv hjertglykosid och en polymer |
US4309404A (en) * | 1979-08-09 | 1982-01-05 | American Home Products Corporation | Sustained release pharmaceutical compositions |
CH655658B (zh) * | 1980-09-18 | 1986-05-15 | ||
US4326525A (en) * | 1980-10-14 | 1982-04-27 | Alza Corporation | Osmotic device that improves delivery properties of agent in situ |
US4439195A (en) * | 1980-10-14 | 1984-03-27 | Alza Corporation | Theophylline therapy |
IT1144911B (it) * | 1981-03-19 | 1986-10-29 | Pharmatec Spa | Composizione farmaceutica a rilascio controllato contenente ibuprofen |
GB2098867B (en) * | 1981-05-21 | 1984-10-24 | Wyeth John & Brother Ltd | Sustained release pharmaceutical composition |
JPS57209223A (en) * | 1981-06-19 | 1982-12-22 | Tanabe Seiyaku Co Ltd | Microcapsule for intracranial anti hypotension and its production |
JPS5826816A (ja) * | 1981-08-11 | 1983-02-17 | Teisan Seiyaku Kk | 球形顆粒からなる持続性複合顆粒剤 |
US4484921A (en) * | 1982-02-01 | 1984-11-27 | Alza Corporation | Theophylline therapy utilizing osmotic delivery |
US4649043A (en) * | 1982-03-22 | 1987-03-10 | Alza Corporation | Drug delivery system for delivering a plurality of tiny pills in the gastrointestinal tract |
US4434153A (en) * | 1982-03-22 | 1984-02-28 | Alza Corporation | Drug delivery system comprising a reservoir containing a plurality of tiny pills |
US4449983A (en) * | 1982-03-22 | 1984-05-22 | Alza Corporation | Simultaneous delivery of two drugs from unit delivery device |
US4642233A (en) * | 1982-03-22 | 1987-02-10 | Alza Corporation | Gastrointestinal drug delivery system comprising a hydrogel reservoir containing a plurality of tiny pills |
JPS58170712A (ja) * | 1982-03-31 | 1983-10-07 | Chiyoda Yakuhin Kk | インドメタシン徐放錠 |
US4578075A (en) * | 1982-12-20 | 1986-03-25 | Alza Corporation | Delivery system housing a plurality of delivery devices |
US4681583A (en) * | 1982-12-20 | 1987-07-21 | Alza Corporation | System for dispersing drug in biological environment |
PH18946A (en) * | 1983-04-21 | 1985-11-14 | Elan Corp Plc | Controlled absorption pharmaceutical composition |
GB2146531B (en) * | 1983-09-15 | 1987-04-29 | Stc Plc | Controlled release system |
SE457505B (sv) * | 1984-01-10 | 1989-01-09 | Lejus Medical Ab | Laminatbelagd oral farmaceutisk komposition och foerfarande foer dess framstaellning |
IT1206166B (it) * | 1984-07-26 | 1989-04-14 | Sigma Tau Ind Farmaceuti | Dispositivo per rilasciare una sostanza in un fluido di dissoluzione con cinetica di ordine zero e procedimento per la sua preparazione |
GB2159715B (en) * | 1984-06-04 | 1988-05-05 | Sterwin Ag | Pharmaceutical composition in sustained release unit dose form and process for its preparation |
-
1985
- 1985-10-11 SE SE8504720A patent/SE450087B/xx not_active IP Right Cessation
-
1986
- 1986-09-09 ZA ZA866861A patent/ZA866861B/xx unknown
- 1986-09-10 EP EP86905963A patent/EP0277127B1/en not_active Expired - Lifetime
- 1986-09-10 HU HU864771A patent/HU199677B/hu unknown
- 1986-09-10 JP JP61505521A patent/JP2560019B2/ja not_active Expired - Lifetime
- 1986-09-10 AU AU65296/86A patent/AU593038B2/en not_active Expired
- 1986-09-10 WO PCT/SE1986/000400 patent/WO1987002240A1/en active IP Right Grant
- 1986-09-10 KR KR1019870700494A patent/KR940000098B1/ko not_active IP Right Cessation
- 1986-09-12 US US06/907,599 patent/US4927640A/en not_active Expired - Lifetime
- 1986-09-18 IE IE249386A patent/IE58967B1/en not_active IP Right Cessation
- 1986-09-25 PH PH34290A patent/PH24739A/en unknown
- 1986-09-26 NZ NZ217697A patent/NZ217697A/xx unknown
- 1986-10-08 GR GR862526A patent/GR862526B/el unknown
- 1986-10-09 CS CS867294A patent/CS268819B2/cs not_active IP Right Cessation
- 1986-10-09 PT PT83508A patent/PT83508B/pt unknown
- 1986-10-10 PL PL1986261801A patent/PL148624B1/pl unknown
- 1986-10-10 DD DD86295171A patent/DD266734A5/de unknown
- 1986-10-10 IS IS3152A patent/IS1530B/is unknown
- 1986-10-10 ES ES8602548A patent/ES2003139A6/es not_active Expired
- 1986-10-11 CN CN86106651A patent/CN1025283C/zh not_active Expired - Lifetime
-
1987
- 1987-06-04 DK DK198702876A patent/DK175592B1/da not_active IP Right Cessation
-
1988
- 1988-04-04 SU SU884355516A patent/SU1706373A3/ru active
- 1988-04-08 FI FI881657A patent/FI97686C/fi not_active IP Right Cessation
-
1994
- 1994-07-15 CY CY176494A patent/CY1764A/xx unknown
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1025283C (zh) | 生产控制释放产品时用的小珠的制备方法 | |
CN1023293C (zh) | 一种含有美多心安盐的控制释放制剂的制备方法 | |
CN1204885C (zh) | 含有非诺贝特的药物组合物及其制备方法 | |
CN1053339C (zh) | 受控释放吗啡制剂 | |
CN1247190C (zh) | 具有难溶性药物速释片芯的缓释包衣片 | |
CN1151844C (zh) | 药学活性颗粒的制备 | |
CN1104891C (zh) | 缓释制剂 | |
CN1160079C (zh) | 发泡性肠溶制剂 | |
CN1303998C (zh) | 含有达非那新的药物制剂 | |
CN1134108A (zh) | 用于控释的新颗粒及含有该颗粒的药物制剂 | |
CN1058533A (zh) | 控释药物制剂 | |
CN87107792A (zh) | 包衣膜及由它制备的组合物 | |
CN1023191C (zh) | 生产持续释放异丁丙苯酸制剂的方法 | |
CN1178659C (zh) | 控释活性化合物的药物制剂 | |
CN1744889A (zh) | 坦洛新的控释药物组合物 | |
CN1081029C (zh) | 丙戊酸金属盐缓释片剂 | |
CN1135981C (zh) | 硫酸吗啡微粒、其制备方法和药物制剂 | |
CN1267089C (zh) | 硫酸吗啡微粒,其制备方法及含有该物质的组合物 | |
CN1791390A (zh) | 口服的可持续释放的药用组合物 | |
CN1090477C (zh) | 含布洛芬的固体组合物 | |
CN1285738A (zh) | 卡维地洛的新的口服剂型 | |
CN1043508C (zh) | 控制释放治疗系统的液体药用制剂的制备方法 | |
CN1193754C (zh) | 释放控制型口服制剂 | |
CN1615121A (zh) | 掩盖味道的包衣组合物 | |
CN1278685C (zh) | 青藤碱或其盐口服缓释微丸及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
C17 | Cessation of patent right |