NO801514L - PROCEDURE FOR PREPARING AN INJECTION SOLUTION CONTAINING SULFAMETOXYPYRIDAZINE AND TRIMETOPRIM - Google Patents
PROCEDURE FOR PREPARING AN INJECTION SOLUTION CONTAINING SULFAMETOXYPYRIDAZINE AND TRIMETOPRIMInfo
- Publication number
- NO801514L NO801514L NO801514A NO801514A NO801514L NO 801514 L NO801514 L NO 801514L NO 801514 A NO801514 A NO 801514A NO 801514 A NO801514 A NO 801514A NO 801514 L NO801514 L NO 801514L
- Authority
- NO
- Norway
- Prior art keywords
- trimethoprim
- sulfonamide
- solution
- injection solution
- sulfametoxypyridazine
- Prior art date
Links
- 239000000243 solution Substances 0.000 title claims description 25
- 229960001082 trimethoprim Drugs 0.000 title claims description 21
- IEDVJHCEMCRBQM-UHFFFAOYSA-N trimethoprim Chemical compound COC1=C(OC)C(OC)=CC(CC=2C(=NC(N)=NC=2)N)=C1 IEDVJHCEMCRBQM-UHFFFAOYSA-N 0.000 title claims description 18
- 238000002347 injection Methods 0.000 title claims description 13
- 239000007924 injection Substances 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 5
- 229940124530 sulfonamide Drugs 0.000 claims description 15
- 150000003456 sulfonamides Chemical class 0.000 claims description 15
- VLYWMPOKSSWJAL-UHFFFAOYSA-N sulfamethoxypyridazine Chemical compound N1=NC(OC)=CC=C1NS(=O)(=O)C1=CC=C(N)C=C1 VLYWMPOKSSWJAL-UHFFFAOYSA-N 0.000 claims description 9
- 229960004936 sulfamethoxypyridazine Drugs 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- VCKSNYNNVSOWEE-UHFFFAOYSA-N 1,3-dioxan-5-ol Chemical compound OC1COCOC1 VCKSNYNNVSOWEE-UHFFFAOYSA-N 0.000 claims description 3
- BOHGAOWOIJMTPZ-UHFFFAOYSA-N 1,3-dioxolan-4-ylmethanol Chemical compound OCC1COCO1 BOHGAOWOIJMTPZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005923 long-lasting effect Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 claims 1
- 230000001766 physiological effect Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- -1 isoxazole-substituted sulfanilamide Chemical class 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000000451 tissue damage Effects 0.000 description 2
- 231100000827 tissue damage Toxicity 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- AMTPYFGPPVFBBI-UHFFFAOYSA-N acedapsone Chemical compound C1=CC(NC(=O)C)=CC=C1S(=O)(=O)C1=CC=C(NC(C)=O)C=C1 AMTPYFGPPVFBBI-UHFFFAOYSA-N 0.000 description 1
- 229950009438 acedapsone Drugs 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229940074076 glycerol formal Drugs 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
- JNMRHUJNCSQMMB-UHFFFAOYSA-N sulfathiazole Chemical compound C1=CC(N)=CC=C1S(=O)(=O)NC1=NC=CS1 JNMRHUJNCSQMMB-UHFFFAOYSA-N 0.000 description 1
- 229960001544 sulfathiazole Drugs 0.000 description 1
- 125000000565 sulfonamide group Chemical group 0.000 description 1
Landscapes
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Foreliggende oppfinnelse angår en fremgangsmåte for fremstilling av en 1-faset injeksjonsoppløsning som har fysiologisk godtagbare egenskaper og langvarig virkning. Oppløsningen inneholder innenfor pH-området 5,7-7,7 10-40% sulfametoksypyridazin og trimetoprim i en slik mengde at forholdet sulfametoksypyridazin til trimetoprim er 3,5:1 - 7:1, fortrinnsvis 5:1. Oppløsningen fremstilles ved oppløsning av sul fametoksypyridazin og trimetoprim ved 60°C under nitrogengassatmosfære i et oppløsningsmiddel bestående av 25% 4-hydroksymetyl-1,3-dioksolan og 75% 5-hydroksy-l,3-dioksan. The present invention relates to a method for producing a 1-phase injection solution which has physiologically acceptable properties and long-lasting effect. The solution contains within the pH range 5.7-7.7 10-40% sulfamethoxypyridazine and trimethoprim in such an amount that the ratio sulfamethoxypyridazine to trimethoprim is 3.5:1 - 7:1, preferably 5:1. The solution is prepared by dissolving sulfamethoxypyridazine and trimethoprim at 60°C under a nitrogen gas atmosphere in a solvent consisting of 25% 4-hydroxymethyl-1,3-dioxolane and 75% 5-hydroxy-1,3-dioxane.
Det er kjent at man kan effektivisere sulfonamiders virkning ved tilsetning av trimetoprim til oppløsningen. Denne syaergisme skyldes det faktum at sulfonamidet og trimetoprim angriper forskjellige stadier innenfor bakterienes virksomhet og hindrer således effektivt deres metabolisme. It is known that the action of sulphonamides can be made more effective by adding trimethoprim to the solution. This syaergism is due to the fact that the sulphonamide and trimethoprim attack different stages within the activity of the bacteria and thus effectively prevent their metabolism.
Det har allikevel vist seg å være et betydelig problemHowever, it has proven to be a significant problem
å fremstille av disse komponenter en sådan 1-faset injeksjons-oppløsning som er tilstrekkelig konsentrert og som egner seg f.eks. ved behandling av infeksjoner hos store husdyr. Det er nemlig umulig å få disse komponenter til å danne en klar vann-oppløsning, eftersom sulfonamider danner oppløselige salter bare med baser, mens trimetoprim, som reagerer alkalisk, danner oppløselige salter bare med syrer. Når vannoppløsninger av disse komponenter blandes, skjer utfelning, hvilket gjør den erholdte oppløsning ubrukelig for injeksjonsformål. to produce from these components such a 1-phase injection solution which is sufficiently concentrated and which is suitable for e.g. in the treatment of infections in large livestock. It is indeed impossible to get these components to form a clear aqueous solution, since sulfonamides form soluble salts only with bases, while trimethoprim, which reacts alkaline, forms soluble salts only with acids. When water solutions of these components are mixed, precipitation occurs, which makes the resulting solution unusable for injection purposes.
Det er gjort adskillige forsøk på å fremstille 1-fasede injeksjonsoppløsninger av disse komponenter. Finsk patent 48 975 beskriver en fremgangsmåte for fremstilling av slike opp-løsninger, i henhold til hvilken' trimetoprim oppløses i et organisk, vannblandbart oppløsningsmiddel. Sulfonamid-komponenten, som ved forsøkene har vært pyrimidin- eller isoksazolsubstituert sulfanilamid, er bragt i oppløsning i vannet ved hjelp av alkali-tilsetning. Disse oppløsninger er senere blandet, og har resultert i en 1-faset oppløsning. Denne har allikevel en høy pH-verdi, hvilket skyldes alkalitilsetningen ved oppløsning av sulfonamidet. En injeksjonsoppløsning hvis pH avviker fra det nøytrale, er skadelig, eftersom den kan forårsake skader på vev, særlig hvis pH-verdien faller utenfor området 4,5-8,0. Several attempts have been made to produce 1-phase injection solutions of these components. Finnish patent 48,975 describes a method for producing such solutions, according to which trimethoprim is dissolved in an organic, water-miscible solvent. The sulfonamide component, which in the experiments was pyrimidine- or isoxazole-substituted sulfanilamide, is brought into solution in the water by means of alkali addition. These solutions are later mixed, and have resulted in a 1-phase solution. This still has a high pH value, which is due to the addition of alkali when dissolving the sulfonamide. An injection solution whose pH deviates from neutral is harmful, as it can cause tissue damage, especially if the pH value falls outside the range of 4.5-8.0.
I finsk patent 55 296 beskrives en fremgangsmåte for frem stilling av en vannholdig, 1-faset injeksjonsoppløsning hvor man som sulfonamid anvender pyrimidin- eller isoksazolsubstituert sulfanilamid samt trimetoprim. Som organisk oppløsningsmiddel anvendes et vannblandbart oppløsningsmiddel. For oppløsning av trimetoprim i vann har man vært tvunget til å tilsette syre, hvilket fører til at sluttproduktets pH forblir på den sure siden, ca. 4,5-5,5. På grunn av risikoen for utfelning kan pH-verdien ikke forhøyes. I tillegg til denne ulempe forblir konsentrasjonen av de aktive stoffer i dette preparat forholdsvis lav, under 10%. Finnish patent 55 296 describes a method for the preparation of an aqueous, 1-phase injection solution where pyrimidine- or isoxazole-substituted sulfanilamide and trimethoprim are used as sulfonamides. A water-miscible solvent is used as an organic solvent. To dissolve trimethoprim in water, one has been forced to add acid, which means that the pH of the final product remains on the acidic side, approx. 4.5-5.5. Due to the risk of precipitation, the pH value cannot be increased. In addition to this disadvantage, the concentration of the active substances in this preparation remains relatively low, below 10%.
Finsk patent 53 070 beskriver en fremgangsmåte for fremstilling av et vannfritt, 1-faset sulfonamid-trimetoprim-preparat, hvor man oppnår både høy konsentrasjon av de aktive stoffer og Finnish patent 53 070 describes a method for the production of an anhydrous, 1-phase sulfonamide-trimethoprim preparation, in which both a high concentration of the active substances and
et nøytralt sluttprodukt. Dette fordelaktige resultat er oppnådd ved anvendelse av bare visse sulfonamider, nemlig sulfadiamin a neutral end product. This advantageous result has been obtained by the use of only certain sulfonamides, namely sulfadiamine
og sulfatiazol. Som oppløsningsmiddel har man bare anvendt N,N-dimetylacetamid, som er konstatert å forårsake skader på vev. and sulfathiazole. As a solvent, only N,N-dimethylacetamide has been used, which has been found to cause tissue damage.
Alle ovennevnte preparater har kortvarig virkning beroendeAll of the above-mentioned preparations have a short-term effect
på den anvendte sul fonamidkomponenten. De sulfonamidkompqnenter som er anvendt i disse preparater, har en halveringstid av størrelsesorden 5 timer. Dette er meget uhensiktsmessig, særlig når det gjelder medisiner for dyr, eftersom trimetoprim har en meget kortvarigere virkning hos dyr enn hos mennesker. Halveringstiden for trimetoprim er for de viktigste indikasjons-gruppene, nemlig storfe og griser, så kort (1-2 timer) at man i praksis ikke kan gjenta doseringene i henhold til trimetoprim-komponentens halveringstid. I denne mellomperiode bør man ha on the sulfonamide component used. The sulfonamide components used in these preparations have a half-life of the order of 5 hours. This is very inappropriate, especially when it comes to medicines for animals, since trimethoprim has a much shorter duration of action in animals than in humans. The half-life for trimethoprim is for the most important indication groups, namely cattle and pigs, so short (1-2 hours) that in practice you cannot repeat the dosages according to the half-life of the trimethoprim component. In this intermediate period one should have
et langtidsvirkende eller middels langtidsvirkende sulfonamid,a long-acting or intermediate-acting sulfonamide,
som motvirker de infeksjonsskapende bakterier.which counteracts the infection-causing bacteria.
Det foreligger et åpenbart behov for å oppnå fysiologisk godtagbare trimetoprim-sulfainjeksjonsoppløsninger med lengere virkningstid enn den man har hos det ovenfor beskrevne preparat. Ifølge oppfinnelsen oppnås dette resultat ved anvendelse av et langtidsvirkende sulfonamid, sulfametoksypyridazin, hvis halveringstid er minst 14 timer. Ved anvendelse av dette sulfonamid oppnås gode resultater ved vesentlig lavere MIC-verdier There is an obvious need to obtain physiologically acceptable trimethoprim-sulfaine injection solutions with a longer duration of action than the preparation described above. According to the invention, this result is achieved by using a long-acting sulfonamide, sulfamethoxypyridazine, whose half-life is at least 14 hours. When using this sulfonamide, good results are achieved with significantly lower MIC values
enn ved anvendelse av sulfonamider med kortvarig virkning.than when using sulfonamides with a short duration of action.
(MIC = minimum hemmende konsentrasjon = laveste bakterieaktivitets-hemmende konsentrasjon). (MIC = minimum inhibitory concentration = lowest bacterial activity-inhibiting concentration).
Sulfametoksypyridazin-trimetoprim-injeksjonsoppløsningerSulfamethoxypyridazine-Trimethoprim Injection Solutions
er fremstilt tidligere. I en tysk patentansøkning, OS 28 18281, beskrives en slik injeksjonsoppløsning. Dette preparat er imidlertid vannholdig og forholdsvis sterkt alkalisk, eftersom man har vært tvunget til å tilsette soda eller natriumhydroksyd ved oppløsning av sulfametoksypyridazin. has been produced previously. In a German patent application, OS 28 18281, such an injection solution is described. However, this preparation is aqueous and relatively strongly alkaline, since one has been forced to add soda or sodium hydroxide when dissolving sulfamethoxypyridazine.
Det er således åpenbart at man hittil ikke har lykkes åIt is thus obvious that one has not succeeded so far
oppnå en slik sulfonamid-trimetoprim-injeksjonsoppløsning, som som sulfonamidkomponent inneholder langtidsvirkende sulfametoksypyridazin og som samtidig er nøytral, vannfri og konsentrert med hensyn til aktive komponenter. Foreliggende oppfinnelse angår en fremgangsmåte for fremstilling av nettopp en slik injeksjonsoppløsning, og beriker således teknikken på verdifull måte. Dette preparat er særlig kuldebestandig, det holder seg uten å krystallisere ved en temperatur på -18°C i 6 måneder. obtain such a sulfonamide-trimethoprim injection solution, which as a sulfonamide component contains long-acting sulfamethoxypyridazine and which is at the same time neutral, anhydrous and concentrated with regard to active components. The present invention relates to a method for producing precisely such an injection solution, and thus enriches the technique in a valuable way. This preparation is particularly cold-resistant, it lasts without crystallizing at a temperature of -18°C for 6 months.
Det karakteristiske ved oppfinnelsen fremgår av patent-kravet. The characteristic of the invention appears from the patent claim.
Oppløsningen tilberedes under sterile forhold under be-skyttelse mot lys. For å unngå misfarvning bør gummislanger og annet tilbehør av gummi unngås. Derimot kan materiale av silikon anbefales. The solution is prepared under sterile conditions under protection from light. To avoid discoloration, rubber hoses and other rubber accessories should be avoided. In contrast, material made of silicone can be recommended.
EksempelExample
20 g sulfametoksypyridazin og 4 g trimetoprim veies opp i20 g of sulfamethoxypyridazine and 4 g of trimethoprim are weighed into
en flaske hvis volum er 100 ml og som inneholder 25% 4-hydroksy-metyl-1,3-dioksolan og 75% 5-hydroksy-l,3-dioksan. Oppvarmningen til 60°C utføres under stadig omrøring i nitrogengassatmosfære. Man fortsetter med oppvarmning og omrøring inntil sul fametoksypyridazin og trimetoprim er fullstendig oppløst. Man kontrol-lerer at volumet er 100 ml og tilsetter efter behov glycerol-formal inntil dette volum er oppnådd. Sluttproduktets pH er 7,3. a bottle whose volume is 100 ml and which contains 25% 4-hydroxy-methyl-1,3-dioxolane and 75% 5-hydroxy-1,3-dioxane. The heating to 60°C is carried out with constant stirring in a nitrogen gas atmosphere. Heating and stirring are continued until sulfamethoxypyridazine and trimethoprim are completely dissolved. You check that the volume is 100 ml and add glycerol formal as needed until this volume is reached. The final product's pH is 7.3.
Oppløsningen filtreres under nitrogengasstrykk gjennom et "Fluoropore"-filter (porestørrelse' 0,22 ym) i et oppsamlingskar til hvilket steril nitrogengass innføres kontinuerlig. The solution is filtered under nitrogen gas pressure through a "Fluoropore" filter (pore size' 0.22 µm) in a collection vessel to which sterile nitrogen gas is continuously introduced.
Den filtrerte oppløsningen fordeles på sterile ampuller som forsegles med silikonkorker. Under fordelingen innføres nitrogengass i ampullene. Det ferdige produkt oppbevares avkjølt beskyttet mot lys. The filtered solution is dispensed into sterile ampoules which are sealed with silicone stoppers. During the distribution, nitrogen gas is introduced into the ampoules. The finished product is kept refrigerated protected from light.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO801514A NO801514L (en) | 1980-05-21 | 1980-05-21 | PROCEDURE FOR PREPARING AN INJECTION SOLUTION CONTAINING SULFAMETOXYPYRIDAZINE AND TRIMETOPRIM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO801514A NO801514L (en) | 1980-05-21 | 1980-05-21 | PROCEDURE FOR PREPARING AN INJECTION SOLUTION CONTAINING SULFAMETOXYPYRIDAZINE AND TRIMETOPRIM |
Publications (1)
Publication Number | Publication Date |
---|---|
NO801514L true NO801514L (en) | 1981-11-23 |
Family
ID=19885495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO801514A NO801514L (en) | 1980-05-21 | 1980-05-21 | PROCEDURE FOR PREPARING AN INJECTION SOLUTION CONTAINING SULFAMETOXYPYRIDAZINE AND TRIMETOPRIM |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO801514L (en) |
-
1980
- 1980-05-21 NO NO801514A patent/NO801514L/en unknown
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