FDA-approved fertility treatment. Prescribed to trigger ovulation in women with irregular or absent cycles β especially in PCOS.
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Clomid (clomiphene citrate) is a prescription medication used to stimulate ovulation in women who donβt ovulate regularly. Itβs often the first-line treatment for infertility caused by PCOS, mild hormonal imbalances, or irregular menstrual cycles. Unlike hormone injections, Clomid works by prompting your own body to release the hormones needed for ovulation.
Clomid blocks estrogen receptors in the hypothalamus β the part of your brain that regulates hormones. As a result, your body thinks estrogen levels are low and increases FSH and LH production, which triggers the ovaries to mature and release an egg. Itβs most effective when taken early in the menstrual cycle, usually between days 3 and 5.
Stay hydrated and report any side effects to your doctor. Ovulation usually occurs 5β10 days after the last tablet.
Clomid is generally well-tolerated, but you might notice: hot flashes, mood swings, headaches, bloating or pelvic discomfort. Rarely, ovarian enlargement or vision changes can occur. If you experience severe pain or blurred vision, stop and call your provider.
Not for women with liver disease, ovarian cysts (non-PCOS), or unexplained abnormal bleeding. Not recommended for use beyond 6 cycles due to ovarian risk. Tell your doctor if you're taking antidepressants, thyroid meds, or other hormonal treatments. Not for use during pregnancy.
This website provides informational overviews of medications and does not offer medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider before starting or changing any medication.
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This page was last medically reviewed: June 2025
Clomid usage should follow current ACOG fertility treatment guidelines.