Section 1 Q.1 Define the following (6) a) Half life b) Pharmacology c) Prescription d) Infection e) Inflammation f) Diuretics Q.2 Write short notes (any three) (12) a) Antiarrhythmic drugs Definition Classification – Vaughan Williams Classification Antiarrhythmic drugs are divided into five classes (I–V) : Class I – Sodium Channel Blockers Class IA (Moderate Na⁺ block, prolong APD) Class IB (Weak Na⁺ block, shorten APD) Class IC (Strong Na⁺ block,