PHARMACEUTICAL SOLVENTS Flashcards
(15 cards)
Pharmaceutical solvents
Water
Alcohol
Glycerin
Propylene glycol
Fixed oils
Most common and preferred solvent
Water
Used for aqueous DF except sterile DF
Purified water
Purified water is _x more free of dissolved solid than is water
100x
Obtained by distillation, ion-exchange or reverse osmosis
Purified water
% content of alcohol to act as preservative
> 10%
Second most common solvent
Alcohol
Can dissolve many water insoluble substances
Alcohol
Prevent microbial growth
Alcohol
Imparts a characteristic taste and odor
Alcohol
Has undesired pharmacological and potential toxic effects when ingested
Alcohol
Clear, syrupy fluid
Glycerin
Glycerin is _ with water and alcohol
MISCIBLE
Humectant, emollient and preservative
Glycerin
Substitute for glycerin
Propylene glycol