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US 3,944,668 AGranted
Antimicrobial compositions
AssigneePaterson Zochonis & Company, Limited
InventorDavid Frederick Cleaver
Life of this patent
Estimating the term…
Abstract
The stability of tetracycline is improved by compounding it with 8 - hydroxyquinoline or a chlorinated and/or alkyl derivative thereof. In the compositions, which are particularly suitable for topical application, the tetracycline and the quinoline derivative are shown to behave synergistically against certain micro-organisms.
Claims1
A stable antimicrobial composition for topical or oral application comprising from 1 to 3% of tetracycline, from 1 to 3% of 5-chloro-8-hydroxyquinoline or 5,7-chloro-8-hydroxyquinoline and a pharmaceutically acceptable diluent or carrier.
Dependencies are inferred from the claim text.