Sulfonamide compositions
AssigneePfizer Inc.
InventorWilliam W. Armstrong
Life of this patent
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Abstract
Aqueous parenteral solutions of from about 10 to 20% w/v of sulfamethoxazole or sulfadoxine and about 3 to 5% w/v of trimethoprim in from 60 to 80% w/v of 2-pyrrolidone are disclosed.
Claims3
A liquid sulfonamide composition comprising an aqueous solution of from about 10 to 20% w/v of sulfamethoxazole and about 3 to 5% w/v of trimethoprim in from about 60 to 80% w/v of 2-pyrrolidone, said composition having a pH of from about 5 to 9.5.
A sulfonamide composition comprising an aqueous solution of about 20% w/v sulfamethoxazole, about 4% w/v trimethoprim, from about 60 to 80% w/v 2-pyrrolidone and from about 1 to 5% w/v of polyvinylpyrrolidone, said composition having a pH value in the range of from about 7 to 9.5.
Dependencies are inferred from the claim text.