Question

Which of the following statement is true for osmotic pumps?

(a) The tube is made up of stainless steel

(b) The innermost is the drug reservoir in a no collapsible bag

(c) The drug is contained a permeable polyester bag

(d) The outer most cover is soft and easily permeable

This question was posed to me in an online quiz.

My question is taken from Biopharmaceuticals in portion Biopharmaceuticals of Drug Biotechnology

Answer 1

Right answer is (a) The tube is made up of stainless steel

Easy explanation: The innermost drug reservoir is contained in an impermeable polyester bag. The outermost rigid rate controlling semipermeable membrane. A rigid polymeric plug is used to form a leak-proof seal between the drug and the semipermeable housing. The tube is made up of stainless steel.