Clomiphene for Infertility: How It Works and Success Rates

Clomiphene (Clomid, Serophene) is an oral medication used to induce ovulation in women with irregular or absent periods. It is often combined with intrauterine insemination (IUI) for unexplained infertility or endometriosis, carrying a 5% chance of twin pregnancies. Treatment typically lasts 5–7 days, with success rates evaluated after 3–6 months.

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Key Takeaways

Clomiphene Uses for Ovulation Induction in Anovulatory Women

Clomiphene is prescribed to women who do not ovulate regularly, characterized by infrequent or absent menstrual cycles. It stimulates the release of hormones necessary for ovulation, making it a first-line treatment for anovulation-related infertility.

Common Side Effects of Clomiphene and Long-Term Risks

Short-term side effects include hot flashes and mood swings. Long-term risks involve ovarian hyperstimulation syndrome (OHHS) and a debated link to ovarian cancer. Treatment is limited to fewer than 12 cycles to mitigate these risks.

Clomiphene Success Rates and When to Seek Advanced Treatments

Approximately 80% of women ovulate with clomiphene, but pregnancy rates vary. If no pregnancy occurs within 3–6 months, specialists typically recommend transitioning to more advanced treatments like in vitro fertilization (IVF).

Multiple Pregnancy Risks with Clomiphene Use

Clomiphene increases the chance of releasing multiple eggs, leading to a 5% twin pregnancy rate. While rare, triplet pregnancies are possible. Patients should consult specialists to weigh risks and benefits.

Clomiphene Combined with Intrauterine Insemination (IUI) for Fertility

Pairing clomiphene with IUI is a standard protocol for unexplained infertility or endometriosis. This combination enhances fertilization chances by timing insemination with ovulation induced by the medication.

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