Pharmacology Isotretinoin is : a) A vitamin A analogue b) Used in cystic acne c) Safe in pregnancy d) Used in psoriasis e) Bony hyperostosis is a safe effect A ac B ad C abe D ade 💡 Explanation Isotretinoin is : a) A vitamin A analogue b) Used in cystic acne c) Safe in pregnancy d) Used in psoriasis e) Bony hyperostosis is a safe effect ✓ Correct Answer: C. abe