Question

What is the function of drug?

Answer 1

Explanation:

A drug is a chemical that interacts with proteins in the body to affect a physiological function. This is the general idea behind all medicine. Once these chemicals are absorbed into the systemic circulation they bind with certain proteins and this changes the functioning of the cell slightly

Answer 2

Answer: A drug is any substance (with the exception of food and water) which, when taken into the body, alters the body's function either physically and/or psychologically.

Explanation: Once these chemicals are absorbed into the systemic circulation they bind with certain proteins and this changes the functioning of the cell slightly.