B.SC NURSING- MARCH: -2020- PHARMACOLOGY, PATHOLOGY, GENETICS (BKNMU) 🔸SECTION-A 🔸PHARMACOLOGY-38 MARKS) 🔸Q-1. What is drug ? Explain the routes of drug administration. What is a Drug A drug is a substance used to diagnose, treat, cure, or prevent diseases or to enhance physical or mental well-being. Drugs can alter physiological functions, affecting the body and mind. They can be natural or synthetic and are usually administered in various forms like