Study of drugs and their body interactions is called?

• A. Pharmacology
• B. Pharmacognosy
• C. Recombinant DNA technology
• D. On-line medical control

Answer: (A)

Pharmacology is the study of drugs and how they interact with living systems. It encompasses pharmacokinetics (what the body does to a drug—absorption, distribution, metabolism, excretion) and pharmacodynamics (what the drug does to the body—mechanism of action, therapeutic effects, side effects). In prehospital care, this knowledge helps you predict onset and duration, choose appropriate dosing, anticipate interactions with other meds or medical conditions, and recognize contraindications. Pharmacognosy focuses on natural sources and origins of drugs, not the full interaction profile. Recombinant DNA technology is about genetic engineering, and online medical control is remote physician guidance, not a drug-interaction discipline.