বহুনির্বাচনি (MCQ)
১. Which drug follows zero-order (saturation) kinetics at usual therapeutic doses?
ক) Phenytoin
খ) Gentamicin
গ) Atenolol
ঘ) Amoxicillin
ঙ) Lithium
উত্তর দেখুন
সঠিক উত্তর: ক) Phenytoin
ব্যাখ্যা: Phenytoin metabolism saturates within the therapeutic range, so a small dose increase can cause a large rise in plasma level and toxicity. Ethanol and high-dose aspirin also follow zero-order kinetics.
📖 রেফারেন্স: Katzung, Basic & Clinical Pharmacology · Pharmacokinetics and pharmacodynamics