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Drug reference

Clomiphene

Aromatase Inhibitor · Treatment of infertility

Also known as Clomifene citrate, CLOMID, SEROPHENE, Milophene

Aromatase InhibitorTreatment of infertility
CDSCO approvedSchedule H
EXCRETION
—
not curated
INTERACTIONS
—
none in our sources
PREGNANCY
Possible effects on fetal development; exclude pregnancy before treatment.
FDA category + note

Mechanism

Clomiphene is classified as an anti-estrogen, acting as a pure antagonist at estrogen receptors in all tissues studied. This antagonism disrupts the negative feedback of estrogen on the hypothalamus and pituitary gland. Consequently, it leads to increased secretion of gonadotropins, which stimulates ovulation in anovulatory women.

Indications

Treatment of infertility in anovulatory womentreatment of infertility in anovulatory women (with functional hypothalamic-hypophyseal-ovarian system and adequate endogenous estrogen production)polycystic ovary syndrome (PCOS)dysfunctional bleeding with anovulatory cyclesinduction of superovulation (in women with unexplained infertility)

Dosing

Adult
gel | 15 unit dose P £30.83 DT = £30.83 Capsule EXCIPIENTS: May contain Arachis (peanut) oil ▶ Utrogestan (Besins Healthcare (UK) Ltd) Progesterone 100 mg Utrogestan 100mg capsules | 30 capsule P £5.13 DT = £5.13 Progesterone 200 mg Utrogestan 200mg vaginal capsules with applicators | 21 capsule P £21.00 DT = £21.00 8.1a Anti-oestrogens OVULATION STIMULANTS Clomifene citrate 20-Nov-2019 (Clomiphen…

Pharmacokinetics

Half-life
5–7 days (long plasma t1/2 due to plasma-protein binding, enterohepatic circulation, and accumulation in fatty tissues)
Excretion
primarily in the feces, to a lesser extent in the urine

Contraindications

  • Pregnancy
  • Liver disease or history of liver dysfunction
  • Uterine fibroids

Side effects

Common
Abdominal distensionAlopeciaAngioedemaAnxietyBreast tendernessDepressionDisorientationDizzinessFatigueHeadacheHot flushHypertriglyceridaemiaInsomniaMenstrual cycle irregularitiesMood alteredNauseaPalpitationsParaesthesiaSkin reactionsSpeech disorderSyncopeTachycardiaUterine disordersVertigoVomitingovarian hyperstimulationincreased incidence of multiple birthsovarian cystshot flashesblurred vision
Serious
  • Cataract
  • Cerebral thrombosis
  • Jaundice cholestatic
  • Neoplasms
  • Nervous system disorders
  • Optic neuritis
  • Ovarian and fallopian tube disorders
  • Pancreatitis
  • Psychosis
  • Seizure
  • Stroke
  • Vision disorders
  • Visual impairment (discontinue and initiate ophthalmological examination)
  • increased risk of ovarian cancer (with prolonged use, e.g., ≥12 cycles)

Pregnancy & lactation

Pregnancy

Possible effects on fetal development; exclude pregnancy before treatment.

Lactation

May inhibit lactation.

Drug interactions

7 additional unreviewed or low-confidence interactions hidden because their provenance or source detail is insufficient.

Related guidelines

Other Aromatase Inhibitor drugs

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Textbook-sourced·Sources: Goodman & Gilman 14e, BNF·Updated: 2026-05-13