Final answer:
Pharmacology is the branch of medicine concerned with the uses, effects, and modes of action of drugs. Pharmacologists study how drugs interact with the body and advise physicians and patients on their use.
Step-by-step explanation:
Pharmacology is the branch of medicine that is concerned with the uses, effects, and modes of action of drugs. It involves studying how drugs interact with the body, understanding their mechanisms of action, and evaluating their effectiveness and safety. Pharmacologists have extensive knowledge of chemistry and biology to analyze the effects of drugs on the body and advise physicians and patients on their proper use.