Question

Which of the following antifertility drugs consists of estrogen derivatives ?

• A. Ofloxacin
• B. Novestrol
• C. Norethindrone
• D. Vancomycin

Answer 1

The correct option is B Novestrol

Progesterone is a harmone that is known to suppress ovulation. Antifertility drugs are made of synthetic estrogen and progesterone derivatives.
Norethindrone is an example of synthetic progesterone derivative most widely used as antifertility drug.
The estrogen derivative which is used in combination with progesterone derivative is ethynylestradiol (novestrol).
Vancomycin and ofloxacin are the other important broad spectrum antibiotics.