GB2323532A - Pharmaceutical compositions containing an anti-infective agent and a micro-organsim as active ingredients - Google Patents
Pharmaceutical compositions containing an anti-infective agent and a micro-organsim as active ingredients Download PDFInfo
- Publication number
- GB2323532A GB2323532A GB9806172A GB9806172A GB2323532A GB 2323532 A GB2323532 A GB 2323532A GB 9806172 A GB9806172 A GB 9806172A GB 9806172 A GB9806172 A GB 9806172A GB 2323532 A GB2323532 A GB 2323532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- infective agent
- infective
- tablet
- coated
- active ingredients
- 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
- 239000004599 antimicrobial Substances 0.000 title claims abstract description 89
- 229960005475 antiinfective agent Drugs 0.000 title claims abstract description 88
- 239000004480 active ingredient Substances 0.000 title claims abstract description 28
- 239000008194 pharmaceutical composition Substances 0.000 title claims description 15
- 239000000203 mixture Substances 0.000 claims abstract description 47
- 241000186660 Lactobacillus Species 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 40
- 229940039696 lactobacillus Drugs 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 36
- 239000003826 tablet Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 244000005700 microbiome Species 0.000 claims abstract description 22
- 229960000723 ampicillin Drugs 0.000 claims abstract description 17
- 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 claims abstract description 17
- 239000002775 capsule Substances 0.000 claims abstract description 17
- 229960003326 cloxacillin Drugs 0.000 claims abstract description 13
- LQOLIRLGBULYKD-JKIFEVAISA-N cloxacillin Chemical compound N([C@@H]1C(N2[C@H](C(C)(C)S[C@@H]21)C(O)=O)=O)C(=O)C1=C(C)ON=C1C1=CC=CC=C1Cl LQOLIRLGBULYKD-JKIFEVAISA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 229940106164 cephalexin Drugs 0.000 claims abstract description 8
- ZAIPMKNFIOOWCQ-UEKVPHQBSA-N cephalexin Chemical compound C1([C@@H](N)C(=O)N[C@H]2[C@@H]3N(C2=O)C(=C(CS3)C)C(O)=O)=CC=CC=C1 ZAIPMKNFIOOWCQ-UEKVPHQBSA-N 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000008187 granular material Substances 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 18
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 15
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 14
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 11
- 230000001225 therapeutic effect Effects 0.000 claims description 11
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 7
- 235000019359 magnesium stearate Nutrition 0.000 claims description 7
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 7
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims description 7
- 239000008108 microcrystalline cellulose Substances 0.000 claims description 7
- KEJCWVGMRLCZQQ-YJBYXUATSA-N Cefuroxime axetil Chemical compound N([C@@H]1C(N2C(=C(COC(N)=O)CS[C@@H]21)C(=O)OC(C)OC(C)=O)=O)C(=O)\C(=N/OC)C1=CC=CO1 KEJCWVGMRLCZQQ-YJBYXUATSA-N 0.000 claims description 6
- 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 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 229960002620 cefuroxime axetil Drugs 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 239000007942 layered tablet Substances 0.000 claims description 6
- ULGZDMOVFRHVEP-RWJQBGPGSA-N Erythromycin Chemical compound O([C@@H]1[C@@H](C)C(=O)O[C@@H]([C@@]([C@H](O)[C@@H](C)C(=O)[C@H](C)C[C@@](C)(O)[C@H](O[C@H]2[C@@H]([C@H](C[C@@H](C)O2)N(C)C)O)[C@H]1C)(C)O)CC)[C@H]1C[C@@](C)(OC)[C@@H](O)[C@H](C)O1 ULGZDMOVFRHVEP-RWJQBGPGSA-N 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 4
- 241000194020 Streptococcus thermophilus Species 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- 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 claims description 4
- 239000008213 purified water Substances 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- -1 Anaoxycillin Chemical compound 0.000 claims description 3
- HZZVJAQRINQKSD-UHFFFAOYSA-N Clavulanic acid Natural products OC(=O)C1C(=CCO)OC2CC(=O)N21 HZZVJAQRINQKSD-UHFFFAOYSA-N 0.000 claims description 3
- 239000001856 Ethyl cellulose Substances 0.000 claims description 3
- 229930182555 Penicillin Natural products 0.000 claims description 3
- HZZVJAQRINQKSD-PBFISZAISA-N clavulanic acid Chemical compound OC(=O)[C@H]1C(=C/CO)/O[C@@H]2CC(=O)N21 HZZVJAQRINQKSD-PBFISZAISA-N 0.000 claims description 3
- 239000007931 coated granule Substances 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
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- 235000019325 ethyl cellulose Nutrition 0.000 claims description 3
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- 239000011780 sodium chloride Substances 0.000 claims description 3
- 229920000881 Modified starch Polymers 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000014897 Streptococcus lactis Nutrition 0.000 claims description 2
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 claims description 2
- 229960003324 clavulanic acid Drugs 0.000 claims description 2
- 229960003276 erythromycin Drugs 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003120 macrolide antibiotic agent Substances 0.000 claims description 2
- 150000002960 penicillins Chemical class 0.000 claims description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 150000005012 8-aminoquinolines Chemical class 0.000 claims 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims 1
- 241001147746 Lactobacillus delbrueckii subsp. lactis Species 0.000 claims 1
- 241000194035 Lactococcus lactis Species 0.000 claims 1
- VJHCJDRQFCCTHL-UHFFFAOYSA-N acetic acid 2,3,4,5,6-pentahydroxyhexanal Chemical compound CC(O)=O.OCC(O)C(O)C(O)C(O)C=O VJHCJDRQFCCTHL-UHFFFAOYSA-N 0.000 claims 1
- 239000003781 beta lactamase inhibitor Substances 0.000 claims 1
- 229940126813 beta-lactamase inhibitor Drugs 0.000 claims 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims 1
- 229950008138 carmellose Drugs 0.000 claims 1
- 229920002301 cellulose acetate Polymers 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 229940041033 macrolides Drugs 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 229960003022 amoxicillin Drugs 0.000 abstract description 19
- LSQZJLSUYDQPKJ-NJBDSQKTSA-N amoxicillin 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=C(O)C=C1 LSQZJLSUYDQPKJ-NJBDSQKTSA-N 0.000 abstract description 19
- LSQZJLSUYDQPKJ-UHFFFAOYSA-N p-Hydroxyampicillin Natural products O=C1N2C(C(O)=O)C(C)(C)SC2C1NC(=O)C(N)C1=CC=C(O)C=C1 LSQZJLSUYDQPKJ-UHFFFAOYSA-N 0.000 abstract description 19
- 230000004888 barrier function Effects 0.000 abstract description 14
- 230000002924 anti-infective effect Effects 0.000 abstract description 5
- 229960002129 cefixime Drugs 0.000 abstract description 5
- OKBVVJOGVLARMR-QSWIMTSFSA-N cefixime Chemical compound S1C(N)=NC(C(=N\OCC(O)=O)\C(=O)N[C@@H]2C(N3C(=C(C=C)CS[C@@H]32)C(O)=O)=O)=C1 OKBVVJOGVLARMR-QSWIMTSFSA-N 0.000 abstract description 5
- 239000002552 dosage form Substances 0.000 abstract description 4
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- 239000007963 capsule composition Substances 0.000 abstract description 2
- 208000018522 Gastrointestinal disease Diseases 0.000 abstract 1
- 229960001668 cefuroxime Drugs 0.000 abstract 1
- JFPVXVDWJQMJEE-IZRZKJBUSA-N cefuroxime Chemical compound N([C@@H]1C(N2C(=C(COC(N)=O)CS[C@@H]21)C(O)=O)=O)C(=O)\C(=N/OC)C1=CC=CO1 JFPVXVDWJQMJEE-IZRZKJBUSA-N 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000007916 tablet composition Substances 0.000 abstract 1
- 206010012735 Diarrhoea Diseases 0.000 description 23
- 238000009472 formulation Methods 0.000 description 18
- 239000004615 ingredient Substances 0.000 description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 9
- 238000002560 therapeutic procedure Methods 0.000 description 9
- 239000003242 anti bacterial agent Substances 0.000 description 8
- 229940088710 antibiotic agent Drugs 0.000 description 8
- 244000052769 pathogen Species 0.000 description 6
- 230000000144 pharmacologic effect Effects 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 206010009657 Clostridium difficile colitis Diseases 0.000 description 5
- 230000003115 biocidal effect Effects 0.000 description 5
- 241000193163 Clostridioides difficile Species 0.000 description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 4
- 208000003100 Pseudomembranous Enterocolitis Diseases 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 229940000425 combination drug Drugs 0.000 description 4
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- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 4
- DBABZHXKTCFAPX-UHFFFAOYSA-N probenecid Chemical compound CCCN(CCC)S(=O)(=O)C1=CC=C(C(O)=O)C=C1 DBABZHXKTCFAPX-UHFFFAOYSA-N 0.000 description 4
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- 206010037128 Pseudomembranous colitis Diseases 0.000 description 3
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- 230000004075 alteration Effects 0.000 description 3
- 229960003870 bromhexine Drugs 0.000 description 3
- OJGDCBLYJGHCIH-UHFFFAOYSA-N bromhexine Chemical compound C1CCCCC1N(C)CC1=CC(Br)=CC(Br)=C1N OJGDCBLYJGHCIH-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 3
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
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Abstract
The present invention relates to the process of preparing a stable fixed dose composition of anti-infective agent with micro organism as active ingredients. The process includes preparation of various dosage forms for oral route like capsule, tablet and liquid formulation. The process comprises providing an appropriate barrier by way of selected coating procedure to one of the active ingredients in such a way that micro organisms are not affected by anti-infective agetns. This results in a stable composition. The ratio of micro organism to anti-infective agents in a composition can be 1:2 to 1:25 by weight. The amount of coating is dependent on the type of coating technique, dosage form i.e. capsule, tablet or liquid and desired self life. The compositions eliminate gastro intestinal disturbances associated with anti-infective agents. The anti-infective agent may be ampicillin, amoxycillin, cloxacillin cephalexin, cefuroxime or cefixime and the micro organism is preferably a Lacto bacillus.
Description
The present invention relates to a process of manufacturing a formulation containing antiinfective agent(s) with viable organisms which are susceptible to anti-infective agents. Micro organisms are used to prevent adverse effects like diarrhoea caused by anti-intective agents.
The present invention is directed to manufacturing of a formulation where in anti-infective agents and susceptible viable organisms are combined in such a way so that micro organisms, through susceptible to anti-infective agent, remain viable for the self life of a formulation and/or till they are consumed. Susceptible organisms are usually combined with antiinfective agents to prevent or minimise adverse elects of anti-infective agents like diarrhoea, pseudomembranous colitis, mega colon, etc.
Organisms are classified as pathogens and commonsals. Pathogens are responsible for various infectious diseases and are not normally present in that part of the body. They are also known as infectious agents. Commonsals are normally present in various parts of body and perform useful functions. They provide vitamin K, B-12, Thiamine, Riboflavin etc. to body. They iiihibit the growth of pathogens by variety of mechanisms. Anti-infective agents are used to treat/prevent infectious diseases. They kill organisms by various ways. however they are not always specific @@@ patl0ogens and also kill commonsals. Destruction or reduction in number of commonsals results ill loss of function of commonsals and various effects of these are seen.2'5 These effects are known as adverse effects or side effects of antiinfective therapy. Diarrhoea with or without super-infection is one of such effecis seen with anti-infective therapy.3.4.6 Diarrhoea is seen as an adverse reaction to many antibiotics. But they are most commonly seen with broad spectrum antibiotics. The incidence of diarrhoea also depends on level of absorption from G.I. tract. They are less frequent with those getting completely absorbed compared to incompletely absorbed. They also depend on anlount of drug used. The antibiotics causing diarrhoea include clindamycin, ampicillin, amoxycillin, cephalosporins (e.g. cefuroxime axetil, cefixime, cepahiexin ceftriaxone), amoxycillin + clauvanic acid, ampicillin + salbeutam, fluoroquinolens and other combinations of broad spectrum antibiotics, e.g. amoxycillin + cloxacillin. 3.5.6.7.8.9.10.11.12.13.16.18 Diarrhoea can be benign and secondary to transient dysfunction of normal colonic flora due to anti-infective agents6 or super-infection by pathogens like clostridium difficile following alteration of normal flora by anti-ineffective agents.7.4.19.20 Management in such an event requires cessation of anti-infective therapy3.7.4 and use of other therapies. Other therapies which can be used include different kind of anti-infective agents e.g. metronidazole, vancomycin, 3.13.8 teicoplanin and/or use of organisms like lactobacilli, biofidobacterium. saccharomyies boulardili, streptococcus thermophilus, enterococcus facecium SF 68, L Casei
GG etc.14.15.16 These can be combined with whole bowel irrigation with good results.'7
Organisms used9 eradicate or help in eradicating pathogens by variety of mechanisms which include production of hydrogen peroxide or inhibition or adherence of pathogens to intestinal cells. Anti-infective agents induced diarrhoea prolong treatment, increase cost of therapy by increased number of' drugs to be used.2 days of hospitalisation and 3consultations.
Sometimes they create life threatening situation e.g. pseudememberous colitis,4.13.20 toxic megacolon.
The organisms named above can be used 10 treat diarrhoea when it occurs. They can also be used to prevent diarrhoea.14.16.18 Commercially available preparations include lactobacillus alone (Lactiflora, Lactobacil, Lactocap, Lactovit, Sporlac) or in' combination with streptococcus (Lacticyn) or Sacchromyces (Laviest). To prevent diarrhoea organisms are given along with the anti-infective agents. This requires consumption of minimum two different drugs i.e. an anti-infective agent and an organism. This decreases compliance of à patient.
Attempts have been made to put organisms and an anti-infective agents into one formulation.
Some of these ore commercially available. Lactobacillus is commonly used organism. Antiinfective agents used in the formulation include ampicillin, (e.g. Alcillin plus from Alpine), amoxicycillin (e.g. Alox plus from Alpine), ampicillin + cloxacillin (e.g. Amplus from
Jagsonpal, Elclox plus from Elder, Penmix plus from Dee Pharma, Pen plus from Systopic, Poxin Plus from Alpine), amoxicycillin + cloxacillin (e.g. Bicidal plus from Kee Pharma,
Diclox from Croford Pharma, Twinclox plus from Alpine). They all are simple admixture of anti-infective agents and susceptible organisms. Ilowever, analysis of' cononoercially available, as well as prepared by us revealed that organisms incorporated into formulation does not remain viable and did not perform any useful function for which they were to be used. Neither organisms nor their activity could be detected as early as 7 days after putting lactobacilli with various antibiotics like ampicillin, amoxycillin, amoxycillin + cloxacillin etc. or in commercially available preparation. Through 60 million spores are put into formulation, none of them could be grown or demonstrated viable on glucose yeast extract agar plate. It also failed to produce lactic acid as evaluated by consumption of NaOH.
REFERENCES 1. Gastrointestinal tracts chapter 65 in Text Book of Medical Physiology ed. Arther C
Guyton & John E.Hall
Publishers Prism Books (Pvt.) Ltd., 9th edition 1996 2. pp. 1042 antimicrobial agents chapter 44 in the Pharmacological Basis of Therapeutics
in Goodman & Gillman 3. PP-586 antibiotic associated colitis Chapter 14 ill Current Medical Diagnosis &
Treatment 36th edition.
4. A.P.Ball, Chapter 7, Toxicity in antibiotics and chemotherapy seventh edition.
edit. Francis O'Gerard 5. Betalactam therapy and intestinal flora
Journal of Chemother. 1995 May; 7 suppl 1: 25-31 6. Diarrhoea caused by antibiotics therapy.
Rev-Prat. 1996 Jan 15; 46(2): 171-6 7. Antibiotic associated diarrhoea in light ol' personal observations.
Pol-Tyg-Lek. 1995 Sep; 50(36): 45-9 8. Antibiotic-induced colitis.
Semin-Pediatr-Surg. 1995 Nov; (4(4): 215-20 9. Clostridium difficile acquisition rate and its role in nosocomial diarrhoea at a university hospital in Turkey.
Eur-J-Epidemiol. 1996 Aug; 12(4): 391-4 10. Risk tractors associated with Clostridium difficile diarrhoea in hospitalized adult
patients: a case-control study---sucralfate ingestion is not a negative risk factor.
Infect-Control-Hosp-Epidemiol. 1996 Apr, 17(4): 232-5 11. Clinical comparison of cefuroxime axetil and amoxycillin/clavulanate in the treatment
of patients with secondary bacterial infections of acute bronchitis.
Clinical Ther. 1995 Sep-Oct; 17 (5): 861-74 12. Clinical comparison of cefuroxime axetil suspension and amoxycillin/lavulanate suspension in tloe treatment of paediatric patients with acute otitis media with effusion.
Clinical Ther. 1995 Sep-Oct; 17(5): 838-51 13. Antibiotic-associated pseudomembranous colitis: retrospective study of 48 cases
diagnosed by colonoscopy.
Therapie. 1996 Jan-Feb; 51(1): 81-6 14. Biotherapeutic agents. A neglected modality for the treatment and prevention of
selected intestinal and vaginal infections.
JAMA 1996 Mar20; 275(11): 870-6 15. The pharmacologic principles of medical practice, Krantz & Carr 16. Prevention of beta-lactam-associated diarrhoea by saccllaromyces boulardii compared
with placibo.
Am.J.Gastroenterol. 1995 IvIar; 90(3): 439-48 17. Whole-bowel irrigation as 110 adjunct to the treatment of chronic, relapsing
Clostridium difficile colitis.
J-Clin-Gastroenterol. 1996 Apr; 22(3); 186-9 18. Prophylaxis against ampicillin-associated diarrhoea with a lactobacillus preparation.
Am.J.Hosp.Pharm. 1979 Jun; 36: 754-757 19. Clostridium difficile in antibiotic associated pediatric diarrhoea.
Indian Pediatr. 1994 Feb; 31(2): 121-6 20. Side effects and consequences of frequently used antibiotics in clinical practice.
Schweiz-Med-Wochenschr. 1996 Mar 30; 126(13): 528-34
The objective of present invention is lo combine susceptible organisms into a pharmaceutical composition containing anti-infective agents and keep the viable for the self life of the formulation or till it is consumed.
The further objective of present invention is to minimise side effects of anti-infective agents resulting from destruction/alteration of normal flora by provising viable organisms along with anti-infective agent(s).
The further objective of present invention is to provide a pharmaceutical composition which is effective after longer period of storage.
The further objective of this present invention is to increase compliance by reduction / elimination in side effects of anti-infective agents.
The turther objective of the present invention is to improve compliance by providing two drugs in one pharmaceutical composition.
The further objective of present invention is to provide at a desired site.
The following specification particularly describes and ascertain the nature of this invention and manner in which it is to be performed.
The anti-infective agent and organisms are to be identified. Their dosage route of administration and dosage fornl is finalised.
The susceptible organism are combined into the formulation in such a way that organisms remain viable for the self life of a formulation inspite of being in contact with anti-infective agent. To protect susceptible organisms from effect of anti-infective agent a protective barrier is created around organisins or anti-infective agent, in such a way that anti-infective agent cannot have effect on oräanisnos. This results in viable organisms in presence of antiinfective agent. The organism remain viable as long as the barrier is maintained. This is like applying paint or a film on a substance to prevent corrosion by isolating it from surroundings.
The protective barrier is selected depending on route ot' administration and dosage form of the pharmaceutical composition (anti-infective agent + organism)
The pharmaceutical composition so manufactured is evaluated for stability and efficacy.
The pharmaceutical composition so manufactured is evaluated at different test conditions of temperature and humidity (45"C, 37"C at 80% relative humidity and ambient temperature) for time interval extending upto 12 months.
The samples of formulation were taken for study at 3 weeks intervals. Samples were analysed for presence of organisms by quantitative and qualitative microbiological techniques.
These values were found to be comparable with amount of organisms introduced into formulation.
The samples ol formulation were also analysed for presence of anti-infective agent by
quantitative estimation. The values of anti-infective agents forms wwere found to be
comparable to those introduced into the formulation.
Thus findings indicate presence of organism and anti-infective agent in same amount when
formulation was evaluated at different time interval after it was exposed to different environment.
The formulations so created were wound to have improved therapeutic efficacy in term of reduction/elimination of antibiotic induced diarrhoea.
Usually ampicillin causes maximum diarrhoea amongst penicillin. The reported incidence is as high as 20% with ampicillins. In 40 patients when ampicillin + lactobacilli were given in a pharmaceutical composition prepared as described in this application, none of them developed diarrhoea and everybody could complete the full course of antibiotic therapy. The non development of diarrhoea suggests efficacy of new pharmaceutical composition prepared according to present invention.
1. Following are examples of formulations containing various anti-infective agents and
susceptible organisms. Flowever, it is not intended that the scope of. this invention
be limited by these examples.
Example I Example II
Ampicillin 250 mgm Ampicillin 500 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example 111 Example IV Amoxycillin 250 mgm Amoxycillin 500 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example V Example VI
Cloxacillin 250 mgm Cloxacillin 500 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example VII Example VIII
Ampicillin 250 mgm Ampicillin 125 mgm
Cloxacillin 250 mgm Cloxacillin 125 mgm
Lactobacillus 60 million Lactobacillus 30 million
Example IX Example X
Amoxycillin 250 mgm Amoxycillin 125 mgm
Cloxacillin 250 mgm Cloxacillin 125 mgm
Lactobacillus 60 million Lactobacillus 30 million
Example XI Example XII
Ampicillin 1000 mgm Ampicillin 250 mgm
Sultamicin 500 mgm Probenecid 250 mgm
Lactobacillus 60 million Lactobacillus 60 million Example XIII Example XIV
Amoxycillin 250 mgm Amoxycillin 500 mgm
Clavulanic acid 125 mgm Probenecid 500 mgm
Lactobacillus 60 million Lactobacillus 60 million Example XV Example XVI
Amoxycillin 250 mgm Amoxycillin 250 mgm
Bromhexine 8 mgm Carbocisteine 150 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example XVII Example XVIII
Amoxycillin 500 mgm Amoxycillin 500 mgm
Bromhexine 8 mgm Carbocisteine 150 mgm
Lactobacillus 60 million Lactobacillus 60 million Example XIX Example XX
Cephalexin 250 mgm Cephalexin 500 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example XXI Example XXII
Cephalexin 250 mgm Cephalexin 250 mgm
Bromhexine 4 mgm Probenecid 250 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example XXIII Example XXIV
Cephalexin 500 mgm Cefuroxime Axetil 125 mgm
Probenecid 500 mgm Lactobacillus 60 million
Lactobacillus 60 million
Example XXV Example XXVI
Cefuroxime Axetil 250 mgm Cefuroxine Axetil 500 mgm
Lactobacillus 60 million Lactobacillus 60 million
Example XXVII Example XXVIII
Cefixime 200 mgm Cefixime 400 mgm
Lactobacillus 60 million Lactobacillus 60 million
In above examples anti-infective agents can be used for any therapeutic purpose which in a therapeutic dosage causes significant adverse effects which can be presented by using an organism. The organism can be any which prevents or minimises adverse reaction of antiinfective agents alien taken at same time. For prevention ol' diarrhoea, pseudomembranous colitis it can be biofidobacterium. sacchormyces streptococcus thermophilus, enterococcus etc. instead of lactobacillus in above examples in their appropriate dosages.
2. Following are examples of providing barrier to organisms for different dosage forms.
1-lowever, it is not intended that the scope of this invention be limited by these
examples.
Example 1
Capsules:
i) Organisms can be lumped together and formulated into a tablet. The tablet
coated with a barrier film. The film protected organisms are introduced into
the capsule independently. Anti-infective agent is put in the capsule
containing organisms protected by a barrier film. It can be vice versa. ii) Organisnis can be granulated. Granules colOtaining organisnis iu-e coated
barrier film. Barrier film coated granules are mixed with anti-infective agent
before filling them into capsules.
Example II Tablets i) Layered tablets Orgtnisms are coated and compressed into a layer of tablet. The other
layer(s) of tablet contains anti-infective agent.
ii) Tablet containing mixture
Granules of organisms are coated with barrier film and mixed with granulated
material of anti-infective agents and compressed into a tablet.
iii) Coated Tablets
Anti-infective agents are formulated into compressed tablet. They are coated.
During coating stage organisms are introduced in the coating. Tlie coating
should be capable of protecting organisms from anti-infective agents. It can
be vice versa i.e. anti-infective agent is included in coating.
iv)
Tablet with a hole is produced containing anti-infective agent. The hole of the
tablet is filled with organisms. The tablet so obtained may be coated for final
finishing.
Coating/barrier protection is not so much necessary as it is in a capsule form as long
as Inoisture content is controlled and physical separation is maintained in a same
tablet. Formulated tablet can be dispersible tablet or simple tablet.
Example III
Liquid formulations :
i) The organisms are coated with barrier film mixed with other ingredients (dry
form) of formulation including anti-infective agent. The product is
reconstituted before use by addition of adequate amount of liquid.
ii) The organisms arc coated with barrier film and suspended in a liquid
containing anti-infective agents or vice versa. Tlie barrier film is stable in
liquid formulation but disintegrates in body due to alteration in surrounding,
e.g. pH 3. Following are examples of coating agents which can be used in making stable fixed
dose pharmaceutical composition containing anti-infective agent(s) and micro
organism. Ilowever, it is not intended that the scope of this invention be limited by
these examples.
Chemical Name Trade Name
1 Cellulose acetate phthalate Aquateric
CAP
Cellacefate
2. Poly(butyl methacrylate. (2-dimethyl aminoethyl) Eudragit E 100
methacrylate, methyl methacrylate) 1:2:1 Eudragit E 12.5 3. Poly(ethyl acrylate, methyl methacrylate) 2:1 Eudragit NE 30D
(formerly Eudragit 30D) 4. Poly(methacrylic acid, methyl methacrylate) 1:1 Eudragit L 100
Eudragit : 12.5
Eudragit L 12.5 P 5. Poly(methacrylic acid, ethyl acrylate) 1:1 Eudragit : L 30 D-55
Eudragit L 100-55 6. Poly(methacrylic acid, methyl methacrylate) 1:2 Eudragit S 100
Eudragit S 12.5
Eudragit S 12.5 P 7. Poly(ethyl acrylate, methyl methacrylate, Eudragit RL 100
trimethylammonioethyl methacrylate chloride) 1.2:0.2 Eudragit RL PO
Eudragit RL 3Ú D
Eudragit RL 12.5 8. Poly(ethyl acrylate, methyl methacrylate. Eudragit RS 100
trimethylammonioethl methacrylate chloride) 1.2:0.1 Eudragit RS PO
Eudragit RS 30 D
Eudragit RS 12.5 9. Hydrogenated Castor Oil Castrowax
Castrowax MP 70
Castrowax MP 80
Opalwax
Simulsol 10. Cetyl Alcohol Crodacol C70
Crodacol C90
Crodacol C95
II. Diethyl Phihalaic Kodatlex DEP
Palatinol A 12. Ethyl cellulose Aquacoat Ethocel
Surelease 13. Hydroxypropyl Cellulose Klucel
Methocel
Nisso HPC 14. Hydroxypropyl Methylcellulose Phthalate -15. Zem - 4. Following are examples of methods of preparing fixed dose stable pharmaceutical
composition. However, it is not intended that the scope of this invention be limited
by these examples.
Example I - Double layered Tablet
A stable fixed dose combination Itycied lablet is prepared using the following
components of which the active ingredients are anti-infective agent(s) and micro
organisms. The remaining components are physiologically acceptable exc ipients. One
of the active ingredients is coated in a coating pan by the coating process known to those skilled in the all. Excipients i IC ll.o used along with one of tile active
ingredients (granules) during tablet making for lubrication as required for the purpose.
Granules of separate active ingredients are first prepared by process known to those
skilled in the art. The separate sets of granules are then compressed on double rotary tablet compression machine having a laying facility at a temperature below 25"C and
relative humidity not more than 50% by processes known to those skilled in the art
and the tablets are transferred to a coating pan for film coating to be given by using
film coating process known to those skilled in the art.
i) The relative proportion of anti infective agents and excipients to prepare
coating suspension and coating anti-infective agents before granulation
Ingredients Parts by weight
Anti infective agent 77.54%
Ethyl cellulose 2.70%
Isopropyl alcohol 7.42% Dichioromethane 12.34% ii) The relative proportion of anti-infective agents and excipients to prepare
granules :
Ingredients Parts by weight Anti-infective agent 64.08%
Microcrystalline cellulose 26.45%
Starch 9.00%
Colour Sunset Yellow Lake 0.45%
Purified water 0.02% iii) The relative proportion of excipients to be added to granules containing anti
infective agents as lubricants Illureslients Parts by weight
Sodium chloride 31.91%
Polyplasdone XL 14.89%
Microcrystalline cellulose 21.28% Saccharine sodium 10.64%
Flavour orange 10.64% Magnesium stearate 5.32% Purified Talc 5.32% iv) The relative proportion of micro organisms and excipients to prepare granules: Ineredients Parts by weight Micro organisms 18.18%
Starch 18.18%
Microcrystalline cellulose 56.67%
Magnesium stearate 0.91%
Polyplasdone XL 3.03%
Sodium chloride 3.03%
The fixed dose layered tablet composition which are prepared through making
use of above described process contain the above active ingredients anti
infective agents and viable o%'anisms in their respective therapeutic
concentration. The composition provide pharmacological effects which are
complementary to the effects produced by (Prior art) each individual
ingredient and ure stable for a period of atleast 3 - 36 months at ambient room
temperature.
Example II - Capsules
A stable fixed dose combination capsules are prepared using following components of which the active ingredients are anti-infective agents and micro organisms. The remaining components are ploysiologically acceptable excipients. Granules of one of the active ingredients (e.g. micro organisms) are first prepared by process known to those skilled in the art. The granules so formed are compresse@ into a tablet by tablet compression machine heaving a laying facility at a temperature below 25"C and relative humidity not more than 50% by process known to those skilled in the art.
Tablets are transferred to a coating pan for coating to be given by coating process known to those skilled in the art.
Tile remaining active ingredient is mixed with excipients and filled into gelatin capsules by process known to those skillucl into the art. Be lore sealing of capsules the coated tablet containing active ingredients are introduced into capsule by processes known to those skilled in the art. i) The relative proportion of anti-infective agent and excipients for filling in capsule Ingredients Parts by weight
Anti-infective agent 91.94%
Pregelatinised starch 6.24%
Magnesium stearate 1.44%
Sodium lauryl sulfate 0.38% ii) The relative proportion of micro organism and excipients to prepare granules
as follows : Ingredients~ Parts bv weight
Micro organism 42.86% Micro crystalline cellulose 53.93%
Magnesium stearate 1.07%
Colloidal silicone dioxide 0.71%
Cross carmellose sodium 1.43% iii) The relative proportion of excipients to prepare coating suspension for coating
of a table containing micro organisms to be kept into a capsule
Ingredients Parts by weight
Hydroxy propyl methyl cellulose 4.37%
pthalate
Titanium dioxide 0.96%
Purified Talc 0.19% Polyethelene glycol 0.99% Isopropyl alcohol 34.95%
Dichloromethane 58.54%
The fixed dose capsule composition which are prepared through making use of above described process contain tlie above active ingredients, anti infective agents and viable organisms in their respective therapeutic concentrations. The composition provide pharmacological effect which are complementary to the effects produced by (prior art) each individual ingredient and are stable for at least 3 - 36 months at ambient room temperature.
Example III - Liquid Suspension
A stable fixed dose combination liquid tablet is prepared using the following components of which the active ingredients are a
The fixed dose liquid suspension composition whicli is prepared through making use of above described process coiotaiio the above active ingredients, anti infective agents and viable organisms in their respective therapeutic concentrations. The composition provide pharmacological effect which are complementary to the effects produced by (prior art) each individual ingredient and are stable for at least 3 - 36 months at ambient room temperltule Example IV - Dry Powder composition to make liquid composition after reconstitution.
A stable fixed dose combination dry powder for reconstituting liquid formulation before use is prepared using the following components of which the active ingredients are acceptable excipients.
One of the active ingredients is granulated after suspending it in a coating suspension by process known to those skilled in the art. The granules so prepared are dried and mixed with dry powder containing another active ingredient by processes known to thoSe skilled in the art in such a way that micro organisms are 20% of anti infective agent(s) by weight.
The relative proportion tot' anti infective agents and the excipients to prepare coated
granules is as follows Ingredients Parts bv weight
Anti infective agent(s) 50%
Hydroxy propyl methyl cellulose 45%
K-15 M (1,00,000 cps)
Purified water 5% Tlle fixed dose dry powdcr composition wliich are prepared through making use of
above described process contain the above active ingredients, anti infective agents and
viable organisms in their respective therapeutic concentrations. The composition
provide pharmacological elTect which are complementary to the effects produced by
(prior art) each individual ingredient and are stable for at least 3 - 36 months at
ambient room temperature.
Above composition when reconstituted by adding liquid prior to use remains stable
at ambient room temperature for 3 to 7 days.
Following are examples of therapeutic dosage of various anti-infective agents and
micro organisms. However, it is not inteioded that the scope of this invention be limited by these examples.
A. Anti-infective agents
Anti infective agents can be penicillins e.g. ampicillin, amoxycillin, cloxacillin,
cephalosporins e.g. cephalexin, cefadroxyl, cefurocime axetil, cefixime, beta lactamase inhibition like clauvanic ncid - macrolide like erythromycin as single
ingredient or combination tllereof.
i. Solid dosage forms like capsules or tablet contains anti infective agents
equivalent to 125, 250 or 500 mgm of active component ii. Liquid dosage Forms usually contains anti infective agents equivalent to 125
mgm of active component in 5 ml.
B. Micro organism which can be used for therapeutic purposes and the dosage are as under 1. Lactobacillus Aciophillus 10 to 100 million 2. Lactobacillus Spores 30 - 60 x 106
3. Lactobacillus Lclctis 10 - 500 million
4. Streptococcus thermophilus 10 million
5. Streptococcus lactis 10 million
6. Saccromyces cerevisea 10 million
7. Lactobctcilli GG 10"' units
Claims (17)
1. A process to provide a stable fixed dose oral pharmaceuticals composition, composed
of anti-infective agents and micro organislns as active ingredients with their different
respective sets of properties, which when taken together as in this invention in a
single composition such as a capsule/tablet/liquid preparation made according to a
conventional process, result in a composition producing a set of effects
complementary to each other, and remaining stable over a period of 3 - 36 months.
2. A process as claimed in claim 1 to provide a stable pharmaceutical composition
consisting essentially of a mixture of i) therapeutic concentration of anti-infective
agent and ii) therapeutic concentration of micro organisms, admixed with
physiological acceptable excipients selected in nature and amount to provide a
solid/liquid oral dosage composition such as a capsule/tablet/liquid preparations with
effects complementary io those provided by each separate active ingredient and which
is stable for a t least 36 months at ambient temperature.
3. A process as claimed in claim 1 & 2 to make a stable pharmaceutical composition wherein anti-infective agents are selected from various groups of anti-infective agents e.g. Ampicillin, Anaoxycillin, Cloxacillin from Penicillins, Clavulanic acid,
Sulfamicin from Beta lactamase inhibitors, Cefuroxime axetil, Cefadroxyl,
Cephalexin from cepahlosporins, Erythromycin from macrolides, Ciprotloxacin from
8-aminoquinolines alone or in combination and organisms are selected from
Lactobacillus aciophillus. Lactobacillus spores, Lactobacillus lactis, Streptococcus
thermophilus, Streptococcus lactis. Saccromyces cerevisea, Lactobacilli GG and/or
in combination thereof
4. A process as claimed in claims 1 - 3 to provide a stable pharmaceutical composition
wherein the ratio of Anti-infective agent to organism is in the range of 2:1 to 25:1
and preferably in the range of 5:1.
5. A process as claimed in claims 1 - 4 wlticlt process comprises admixing separately
anti-infective agent and organism with physiologically acceptable excipients to provide
granules, of which at least one is coated, said granules being subsequently compressed
into cl layered tablet using a double rotary compression under strict environmental
conditions of temperature below 25"C and relative Iiumidity not more than 50%.
6. A process as claimed in claims 1 - 5 one of tile active ingredients comprising the provision ol' the coated anti-infective agent of about 77.54% is coated by suspending
coating in a suspension containing about 2.7% of ethyl cellulose dissolved in about
7.42% of isopropyl alcohol and about 12.34% of dichlormethane.
7. A process as claimed in claims t - 5 comprising the provision of granules of coated
anti infective agents as claimed in claim 6 admixed with physiologically acceptable exelpient by using a mixture of about 64.08% of anti infective agent about 26.45%
of microcrystalline cellulose about 9.0% of starch, about 0.45% of colour sunset
yellow lake of about 0.02% of purified water by wight of said mixture, said granules beilog subsequently compressed with granules of micro orgc'tnisms into a layered tablet.
8. A process as claimed in clalnos 1 - 5 comprising the provision of granules of
organism admixed with physiologically acceptable salts by using a mixture of about
18.18% of micro organisms, about 18.18% of starch, about 56.67% of
microcrystalline cellulose, about 91% of magnesium stearate, about 3.03% of
polyplasdone XL and 3.03% of sodium chloride by weight of the mixture, said
granules being subsequently compressed with the coated granules of anti-infective
agent into a layered tablet.
9. A process as claimed in claim 1 - 4 wherein one of the active ingredients is
compressed into a tablet and coated, said coated tablet is put into a capsule containing
another active ingredient.
10. A process as claimed in claim 1 - 4 and 9 comprising the provision of a tablet micro
organism admixed with physiologically acceptable excipients by using a mixture of about 42.86% of micro organisms, about 53.93% of microcrystalline cellulose, about
1.07% of magnesium stearate, about 10.71% of colloidal silicone dioxide, about
1.43% of cross carmellose sodiullo by weight of said mixture.
11. A process as claimed in claim 1 - 4 and 9 comprising the provision of coating of the
tablet is carried out by using a coating suspension comprising about 4.31% of
hydroxy propyl methyl cellulose pthalate, about 0.96% of Titanium dioxide, about 0.19% of purified talk, about 0.91% % of poyethelene glycol, about 4.95% of isopropyl alcohol, about 58.54% dichloro methane by weight of suspension.
12. A process as claimed in claim 1 - 4 and 9 comprising the provision anti-infective
agents admixed with physiologically acceptable excipients by using a mixture of about
91.94% of anti-infective agent, about 6.24% of pregelatinised starch, about 1.44%
of magnesium stearate, about 0.38% of sodium lauryl sulfate by weight of said
mixture which is subsequently filled into capsules.
13. A process as claimed in claim 1 - 4 wherein one of the active ingredients is coated
and suspended into a solution containing another active ingredient.
14. A process as claimed in claim 1 - 4 and claim 13 comprising of coating of anti
infective agent in which coating of about 56.82% of anti-infective agent is carried out
by using a coating suspension comprising about 22.73% of cellulose acetate pthalate,
about 6.82% of isopropyl alcohol, about 13.63% of dichloromethane by weight, said
coated anti-infective agent is suspended in liquid.
15. A process ts Cl;lilllCd ill claim I - 4 and claim 14 COllll)liSilIg the provision of coated anti-infective agent in wliich coating of about 50% of anti-infective agent is carried
out by using a coating suspension comprising about 45% of hydroxy propyl methyl
cellulose K-15M (1,00,000 cps), about 5% of purified water by weight of said
mixture.
16. A process as claimed in claim 1 - 4 wherein liquid preparation having shorter self life
has to be dispensed in dry form, said dry form comprising the said two active
ingredients wherein one of them is coated and kept in such a way so that when
reconstituted it forms a suspension which is stable for 3 to 7 days at ambient
temperature.
17. A process for preparation of a stable fixed dose pharmaceutical composition of anti
infective agent/agents and micro organism as active ingredients as claimed in claim
1 and subsequehtly herein described in examples 1 to 5 in the accompanying complete
specification.
Priority Applications (1)
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GB9806172A GB2323532B (en) | 1997-03-27 | 1998-03-24 | Process for the preparation of a stable fixed dose pharmaceutical composition of anti-infective agent(s) and micro organisms as active ingredients |
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Application Number | Priority Date | Filing Date | Title |
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IN174DE1997 | 1997-03-27 | ||
GB9806172A GB2323532B (en) | 1997-03-27 | 1998-03-24 | Process for the preparation of a stable fixed dose pharmaceutical composition of anti-infective agent(s) and micro organisms as active ingredients |
Publications (3)
Publication Number | Publication Date |
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GB9806172D0 GB9806172D0 (en) | 1998-05-20 |
GB2323532A true GB2323532A (en) | 1998-09-30 |
GB2323532B GB2323532B (en) | 2001-08-22 |
Family
ID=26313336
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Cited By (12)
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EP1121940A1 (en) * | 2000-01-31 | 2001-08-08 | New Pharma Research Sweden AB | Pharmaceutical compositions comprising an antibiotic and bromhexine, and process for their preparation |
WO2001056610A1 (en) * | 2000-01-31 | 2001-08-09 | New Pharma Research Sweden Ab | Stabilised pharmaceutical compositions and process for their preparation comprising an antibiotic and an expectorant |
WO2005063200A2 (en) * | 2003-12-24 | 2005-07-14 | Ferrosan A/S | Probiotic tablet formulations |
WO2005063200A3 (en) * | 2003-12-24 | 2005-11-24 | Ferrosan As | Probiotic tablet formulations |
EA011321B1 (en) * | 2003-12-24 | 2009-02-27 | Ферросан А/С | Probiotic tablet |
AU2004308632B2 (en) * | 2003-12-24 | 2010-07-01 | Ferrosan Aps | Probiotic tablet formulations |
NO340908B1 (en) * | 2003-12-24 | 2017-07-10 | Ferrosan As | Probiotic tablet formulations |
US10172793B2 (en) | 2003-12-24 | 2019-01-08 | Ferrosan A.S. | Probiotic tablet formulations |
EP1744767A2 (en) * | 2004-04-20 | 2007-01-24 | The University of Chicago | Therapeutic delivery system comprising a high molecular weight peg-like compound |
JP2007533755A (en) * | 2004-04-20 | 2007-11-22 | ザ ユニヴァーシティ オヴ シカゴ | Therapeutic drug delivery system comprising high molecular weight PEG-like compounds |
EP1744767A4 (en) * | 2004-04-20 | 2008-08-13 | Univ Chicago | Therapeutic delivery system comprising a high molecular weight peg-like compound |
WO2013001541A1 (en) * | 2011-06-30 | 2013-01-03 | Aggarwal Kumar Vijay | An optimized bilayered tablet dosage form with high rate of bioavailability of two active antibiotics: cefuroxime and clavulanic acid |
Also Published As
Publication number | Publication date |
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GB9806172D0 (en) | 1998-05-20 |
GB2323532B (en) | 2001-08-22 |
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