## Core Concept
Clomiphene citrate is a selective estrogen receptor modulator (SERM) primarily used to treat infertility in women. It works by binding to estrogen receptors in the hypothalamus, leading to an increase in gonadotropin-releasing hormone (GnRH) secretion, which in turn stimulates the pituitary gland to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH), promoting ovulation.

## Why the Correct Answer is Right
The correct answer, **D. Decrease FSH levels**, is right because clomiphene citrate actually increases FSH levels indirectly by blocking negative feedback of estrogen on the hypothalamus and pituitary gland. This increase in FSH is crucial for stimulating follicular growth and ovulation.

## Why Each Wrong Option is Incorrect
- **Option A:** Clomiphene can cause **Ovulation induction**, which is its primary therapeutic effect. Therefore, it is incorrect as an answer to what clomiphene is not known to produce.
- **Option B:** **Estrogenic effects** are indeed produced by clomiphene, as it acts as an estrogen agonist or antagonist depending on the tissue. This is not the correct answer.
- **Option C:** While clomiphene can have anti-estrogenic effects, particularly in the uterus, it does not significantly **Decrease LH levels**. Instead, it tends to increase LH levels, similar to its effect on FSH, to facilitate ovulation.

## Clinical Pearl / High-Yield Fact
A key clinical pearl is that clomiphene citrate is most effective in women with polycystic ovary syndrome (PCOS) or other causes of anovulatory infertility. However, it's worth noting that clomiphene can have side effects, including hot flashes, and there's a risk of multiple gestations due to the potential for multiple ovulations.

## Correct Answer: D. Decrease FSH levels