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Clomifene citrate

Aromatase Inhibitor · Ovulation Stimulant

Also known as Clomiphene citrate, Clomid

Aromatase InhibitorOvulation Stimulant
CDSCO approved
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
not curated

Mechanism

Clomifene citrate is an anti-oestrogen that induces gonadotrophin release by occupying oestrogen receptors in the hypothalamus, thereby interfering with feedback mechanisms. This action leads to an elevation of serum LH.

Indications

Female infertility due to ovulatory dysfunction

Dosing

Adult
Adult (female): 50 mg once daily by mouth for 5 days, initiated at any time if no recent uterine bleeding, or on or around the fifth day of cycle if progestogen-induced bleeding is planned or spontaneous uterine bleeding occurs. If ovulation does not occur, a second course of 100 mg once daily for 5 days may be given, at least 30 days after the first course.…
Max dose
100 mg once daily for 5 days per course; long-term cyclical therapy not recommended beyond a total of 6 cycles.

Contraindications

  • Abnormal uterine bleeding of undetermined cause
  • Hormone-dependent tumours
  • Ovarian cysts
  • Long-term cyclical therapy beyond 6 cycles (due to possible increased risk of ovarian cancer)

Side effects

Common
Abdominal
Serious
  • Ectopic pregnancy
  • Ovarian hyperstimulation syndrome
  • Increased incidence of multiple births
  • Enlargement of ovarian cysts (especially in polycystic ovary syndrome patients)
  • Uterine fibroids
  • Possible increased risk of ovarian cancer (with use beyond 6 cycles)

Related guidelines

Other Aromatase Inhibitor drugs

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Sources: BNF·Verified: 2026-05-13 · House clinical team