Question

The contraceptive "SAHELI"

• A. is a post-coital contraceptive.
• B. blocks estrogen receptors in the uterus, preventing eggs from getting implanted.
• C. is an IUD.
• D. increases the concentration of estrogen and prevents ovulation in females.

Answer 1

The Correct Option is B

The question asks us about the function of the contraceptive known as "SAHELI," and provides several options regarding its mechanism. Let us examine each option to deduce the correct one.

1. Option 1: SAHELI is a post-coital contraceptive.
   • This is not the function of SAHELI. Post-coital contraceptives are typically emergency contraceptives used after intercourse, which SAHELI is not. Hence, this option can be ruled out.
2. Option 2: SAHELI blocks estrogen receptors in the uterus, preventing eggs from getting implanted.
   • This is the correct mechanism of SAHELI. It is a non-steroidal oral contraceptive developed in India, which works by blocking estrogen receptors in the uterus and thus preventing the implantation of fertilized eggs.
3. Option 3: SAHELI is an IUD.
   • SAHELI is not an intrauterine device (IUD). It is an oral contraceptive pill, so this option is incorrect.
4. Option 4: SAHELI increases the concentration of estrogen and prevents ovulation in females.
   • This is also incorrect. Unlike typical hormonal contraceptives that increase estrogen levels to prevent ovulation, SAHELI works by blocking estrogen receptors without altering estrogen levels significantly.

Therefore, the correct answer is Option 2, which is "blocks estrogen receptors in the uterus, preventing eggs from getting implanted." This option accurately describes SAHELI's non-steroidal mechanism of action, which is unique among contraceptive methods. It is developed as a safer and side-effect-free option compared to conventional hormonal pills.