What do oral pills contain and how do they act as effective

cbse-class-12

#1

What do oral pills contain and how do they act as effective contraceptives?


#2

Oral contraceptive or pills are either progestogens or progestogen-oestrogen combinations.
They function as contraceptives by
(i) inhibiting ovulation.
(ii) inhibiting implantation,
(iii) altering the quality of cervical mucus to prevent or stop the entry of sperms.