Pharmacology Metyrapone acts by – A Inhibition of 17a-Hydroxylase B Inhibition of 21b-Hydroxylase C Inhibition of 11b-Hydroxylase D Inhibition of 3b-Hydroxysteroid dehydrogenase 💡 Explanation Metyrapone acts by - ✓ Correct Answer: C. Inhibition of 11b-Hydroxylase