Consider the following pairs: 1. Natural contraceptive : Lactational Amenorrhea 2. Barrier method : Progestasert 3. Hormone Releasing IUDs : Saheli How many of the above pairs are correctly matched?

Natural methods

• Lactational amenorrhea is the absence of the menstrual cycle during the period of intense breast feeding after child birth, and it is a natural method of contraception which is effective up to about six months after delivery. Periodic abstinence, coitus interruptus and lactational amenorrhea are the natural methods. Hence, pair 1 is correctly matched.

Barrier methods

• Condoms, diaphragms, cervical caps and vaults are barrier methods, in which the ovum and the sperm are prevented from meeting physically.
• Progestasert and LNG-20 are hormone releasing intrauterine devices and not barrier methods. Hence, pair 2 is not correctly matched.

Saheli

• Saheli is a non-steroidal oral contraceptive pill developed at the Central Drug Research Institute, Lucknow, and taken once a week. It is not an intrauterine device. Hence, pair 3 is not correctly matched.
• Copper T and Multiload 375 are copper releasing IUDs while the Lippes loop is a non-medicated IUD.
• Therefore, only one pair is correctly matched.