Clomphene citrate – True statement is aEUR’
**Clomiphene Citrate - True Statement**
**Core Concept**
Clomiphene citrate is a selective estrogen receptor modulator (SERM) used in the treatment of infertility in women with polycystic ovary syndrome (PCOS). It works by inhibiting the negative feedback of estrogen on the hypothalamus, leading to increased gonadotropin secretion and subsequent ovulation.
**Why the Correct Answer is Right**
Clomiphene citrate binds to estrogen receptors in the hypothalamus, thereby blocking the negative feedback of estrogen on gonadotropin-releasing hormone (GnRH) release. This leads to an increase in GnRH secretion, which in turn stimulates the release of follicle-stimulating hormone (FSH) from the anterior pituitary gland. The increased FSH levels stimulate the growth and maturation of ovarian follicles, resulting in ovulation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because clomiphene citrate does not work by directly stimulating the ovaries to produce eggs.
**Option B:** This option is incorrect because clomiphene citrate is not an anti-androgen medication.
**Option C:** This option is incorrect because clomiphene citrate is not a gonadotropin-releasing hormone (GnRH) agonist.
**Clinical Pearl / High-Yield Fact**
Clomiphene citrate is often used in combination with human chorionic gonadotropin (hCG) to stimulate ovulation in women who do not respond to clomiphene citrate alone. This is because hCG mimics the action of luteinizing hormone (LH) and can help to trigger ovulation.
**Correct Answer: A. Clomiphene citrate works by inhibiting the negative feedback of estrogen on the hypothalamus, leading to increased gonadotropin secretion and subsequent ovulation.**