Which compound is used in contraceptive pills?

Correct answer: (a) Levonorgestrel

Explanation

Levonorgestrel is a synthetic hormone mimicking progesterone, used in daily and emergency contraceptive pills.

It prevents ovulation, thickens cervical mucus, and alters the uterine lining to block implantation.

Cholecalciferol is Vitamin D, venlafaxine an antidepressant, and cetirizine an antihistamine.