What is the action of SAHELI ?

Options

A. Antiestrogenic
B. Antiprogesteronic
C. Releasing progesterone prevents implantation
D. Relesing copper inhibits motility of sperms

Answer

**Step-by-Step Solution:**

1. **Understanding SAHELI**: SAHELI is a contraceptive pill designed to prevent pregnancy after unprotected intercourse. It is categorized as an emergency contraceptive.

2. **Composition of SAHELI**: SAHELI is a non-steroidal contraceptive, meaning it does not contain steroid hormones. This is significant because many contraceptives rely on steroid hormones to function.

3. **Mechanism of Action**:
- **Anti-estrogenic Effect**: SAHELI works primarily by exhibiting anti-estrogenic properties. It lowers the levels of estrogen in the body, which is crucial for the maintenance of pregnancy.
- **Source of Anti-estrogenic Component**: The active ingredient in SAHELI is derived from all-mix-ox-fil-3, which is known for its anti-estrogenic effects.

4. **Distinction from Other Contraceptives**:
- Unlike other contraceptives that may use anti-progesterone mechanisms (like the pill 'Eiffel'), SAHELI does not inhibit progesterone. This differentiates it from other types of contraceptive pills.
- SAHELI does not prevent implantation of a fertilized egg; instead, it primarily acts by altering hormonal levels to prevent ovulation and fertilization.

5. **Comparison with IUDs**: The mention of copper ions refers to intrauterine devices (IUDs), which work differently by inhibiting sperm motility and preventing fertilization. SAHELI does not function in this manner.

6. **Conclusion**: The primary action of SAHELI is to lower estrogen levels, thereby preventing pregnancy after unprotected intercourse.