A contraceptive option that suppresses sperm motility and also inhibits implantation of blastocyst:

Concept:

• Contraceptives are birth control devices that help in preventing unwanted pregnancies.
• Various contraceptive methods can be divided into:

1. Natural Methods -
   • These include natural ways by which the meeting of sperm and ovum can be avoided.
   • There are 3 major ways - Periodic abstinence, Coitus interruptus and Lactational amenorrhea.
2. Physical Methods/ Barriers -
   • This is the method by which physical barriers are used to prevent pregnancy.
   • Males can use condoms, while females can use diaphragm, cervical caps or vaults.
   • They block the entry of sperms through the cervix.
3. IUDs -
   • Intra-uterine devices are inserted into the uterus through the vagina.
   • These can be non-medicated, copper-releasing or hormone releasing.
   • Examples - Lippes loop, CuT, Cu7, Progestasert.
4. Oral Contraceptives -
   • This involves oral administration of contraceptives.
   • It is also known as oral pills.
   • They are usually small doses of progesterone or a combination of progesterone and estrogen.
5. Surgical Methods -
   • This includes sterilization processes of tubectomy and vasectomy.
   • It is a terminal method and often irreversible.
   • It interferes with gamete transfer and thus prevent pregnancies.

Important Points

• Intra-uterine devices or IUDs are inserted into the uterus through the vagina by any medical professional only.
• These can be of 3 basic types:

1. Non-medicated -
   • These devices increase phagocytosis of sperms within the uterus.
   • Examples - Lippes loop.
2. Copper-releasing -
   • They release Cu ions which suppress sperm motility and fertilizing capacity of sperms.
   • Examples - Copper-T, Cu7, Multiload 375.
3. Hormone-releasing -
   • These make the uterus hostile and unsuitable for implantation.
   • Examples - Progestasert, LNG-20.

Therefore, the correct answer is copper-T.