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US 4,393,073 AGranted
Pharmaceutical preparations
AssigneeHoffmann-La Roche Inc.
InventorsWalter Boguth, Georges Hirth
Life of this patent
Estimating the term…
Abstract
Pharmaceutical preparations containing glycerol alkyl ethers as the solvent.
Claims6
A pharmaceutical preparation comprising an effective amount of a vitamin selected from the group consisting of vitamin A acetate, vitamin K.sub.1 and vitamin E and a solvent containing a glycerol lower-alkyl ether selected from glycerol 1-methyl ether, glycerol 1-ethyl ether, glycerol 1,3-dimethyl ether and glycerol, 1,2-dimethyl ether, said glycerol lower-alkyl ether and said solvent being present in an amount sufficient to dissolve said active ingredient.
Dependencies are inferred from the claim text.