Social & Preventive Medicine Mechanism of action of an oral contraceptive containing a combination of oestrogen-progestin is the following except- A Inhibition of ovulation B A change in the cervical mucus C Inhibition of motility of the uterine tubes D All 💡 Explanation Mechanism of action of an oral contraceptive containing a combination of oestrogen-progestin is the following except- ✓ Correct Answer: C. Inhibition of motility of the uterine tubes