Pharmacology With IV infusion, a drug reaches 90% of its final steady state in 10 hours. The elimination half-life of the drug must be approximately A 1 h B 2 h C 3 h D 6 h 💡 Explanation With IV infusion, a drug reaches 90% of its final steady state in 10 hours. The elimination half-life of the drug must be approximately ✓ Correct Answer: C. 3 h