Which of the following are not involved in intra uterine devices?(A)…

The correct answer is Option (2) → (C) and (D) only

An intra uterine device (IUD) is a small device placed in the uterus through the vagina by a doctor or trained nurse. IUDs are of three kinds: non-medicated, copper releasing and hormone releasing.

(A) Lippes Loop — An IUD. It is a non-medicated IUD. It works by increasing the phagocytosis of sperms inside the uterus.

(B) LNG-20 — An IUD. It is a hormone releasing IUD. Besides acting on the sperms, it makes the uterus unsuitable for implantation.

(C) Saheli — Not an IUD. Saheli is a non-steroidal oral pill, taken once a week. It was developed by CDRI, Lucknow.

(D) Implants — Not an IUD. Implants carry progestogens alone or with estrogen. They are placed under the skin, not in the uterus.

NCERT Extract:
Population Stabilisation and Birth Control – “… Another effective and popular method is the use of Intra Uterine Devices (IUDs). These devices are inserted by doctors or expert nurses in the uterus through vagina. These Intra Uterine Devices are presently available as the non-medicated IUDs (e.g., Lippes loop), copper releasing IUDs (CuT, Cu7, Multiload 375) and the hormone releasing IUDs (Progestasert, LNG-20) (Figure 3.2). IUDs increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms. The hormone releasing IUDs, in addition, make the uterus unsuitable for implantation and the cervix hostile to the sperms.”