Question

Which of the following is a false statement for vapour pressure pump?

(a) The device consists of two chambers

(b) A chamber contains the drug solution

(c) Drug solution chamber is separated by rigid walls

(d) Vapour chamber contains vaporizable fluids

The question was posed to me by my college professor while I was bunking the class.

The doubt is from Biopharmaceuticals in division Biopharmaceuticals of Drug Biotechnology

Answer 1

Correct answer is (c) Drug solution chamber is separated by rigid walls

For explanation I would say: The disc-shaped device consists of two chambers. The infuscate chamber consists if the drug solution which will be separated by a freely movable flexible bellow from the vapor chamber containing vaporizable fluids. The volatile liquid vaporizes at body temperature after implantation thus creating vapour pressure which compresses and expels the drug through a series of flow regulators.