Pharmacology When the same dose of a drug is repeated at half life intervals, the steady-state(plateau)plasma drug concentration is reached after A 2-3 half lives B 4-5 half lives C 6-7 half lives D 8-10 half lives 💡 Explanation When the same dose of a drug is repeated at half life intervals, the steady-state(plateau)plasma drug concentration is reached after ✓ Correct Answer: B. 4-5 half lives