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
Answer is B. Steady state concentration of a drug is achieved after 4-5 half-lives Ref: KDT 6/e pg 30.