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Clomid Side Effects

Generic name: clomiphene

Medically reviewed by Last updated on Oct 24, 2022.

Note: This document contains side effect information about clomiphene. Some dosage forms listed on this page may not apply to the brand name Clomid.

Applies to clomiphene: oral tablets.

Side effects include:

Ovarian enlargement; abdominal or pelvic discomfort including distention, bloating, or pain; hot flushes (flashes).

For Healthcare Professionals

Applies to clomiphene: compounding powder, oral tablet.


At recommended doses, this drug is well tolerated. Most side effects have been mild and transient and disappear promptly after treatment has stopped.[Ref]


Very common (10% or more): Ovarian enlargement (up to 13.6%), vasomotor flushes (10.4%)

Common (1% to 10%): Abdominal/pelvic discomfort/distention/bloating, breast discomfort, uterine bleeding abnormal, intermenstrual spotting, menorrhagia

Frequency not reported: Urinary frequency increased, urinary volume increased, vaginal dryness

Postmarketing reports: Endometriosis, ovarian hemorrhage, tubal pregnancy, uterine hemorrhage, reduced endometrial thickness, ovarian hemorrhage, tubal pregnancy, uterine hemorrhage, endometrial thickness reduced

Fetal/Neonatal Patients:

-Postmarketing reports: Hypospadias, cloacal exstrophy[Ref]


Common (1% to 10%): Blurred vision, lights, floaters, waves, unspecified visual complaints, photophobia, diplopia, scotomata, phosphenes

Postmarketing reports: Abnormal accommodation, cataract, eye pain, macular edema, optic neuritis, photopsia, posterior vitreous detachment, retinal hemorrhage, retinal thrombosis, retinal vascular spasm, temporary or prolonged loss of vision

Fetal/Neonatal Patients:

-Postmarketing reports: Eye malformed, lens malformed/cataract[Ref]


Postmarketing reports: Arrhythmia, chest pain, hypertension, palpitation, phlebitis, tachycardia, thrombophlebitis

Fetal/Neonatal Patients:

-Postmarketing reports: Septal heart defect, muscular ventricular septal defect, patent ductus arteriosus, tetralogy of Fallot, coarctation of aorta[Ref]


Postmarketing reports: Thyroid disorder

Fetal/Neonatal Patients:

-Postmarketing reports: Dwarfism[Ref]


Frequency not reported: Ovarian cancer, ovarian tumor

Postmarketing reports: Ovarian cyst, hepatic hemangiosarcoma, liver cell adenoma, hepatocellular carcinoma, fibrocystic disease, breast carcinoma, endometrial carcinoma, astrocytoma, pituitary tumor, prolactinoma, neurofibromatosis, glioblastoma multiforme, brain abscess, ovary (luteoma of pregnancy, dermoid cyst of the ovary, ovarian carcinoma, hydatiform mole, choriocarcinoma, melanoma, myeloma, perianal cysts, renal cell carcinoma, Hodgkin's lymphoma, tongue carcinoma, bladder carcinoma

Fetal/Neonatal Patients:

-Postmarketing reports: Neuroectodermal tumor, thyroid tumor, hepatoblastoma, lymphocytic leukemia[Ref]

Nervous system

Common (1% to 10%): Headache

Frequency not reported: Dizziness, lightheadedness

Postmarketing reports: Migraine headache, paresthesia, seizure, stroke, syncope

Fetal/Neonatal Patients:

-Postmarketing reports: Neural tube defect, anencephaly, meningomyelocele), microcephaly, hydrocephalus[Ref]


Frequency not reported: Dermatitis, rash, hair loss/dry hair

Postmarketing reports: Acne, allergic reaction, erythema, erythema multiforme, erythema nodosum, hypertrichosis, pruritus, urticaria[Ref]


Common (1% to 10%): Nausea, vomiting

Frequency not reported: Acute abdomen, constipation, diarrhea

Postmarketing reports: Pancreatitis

Fetal/Neonatal Patients:

-Postmarketing reports: Cleft lip/palate, imperforate anus, tracheoesophageal fistula, diaphragmatic hernia, omphalocele[Ref]


Postmarketing reports: Leukocytosis[Ref]


Postmarketing reports: Increased transaminases, hepatitis[Ref]


Frequency not reported: Appetite increased, serum desmosterol levels increase

Postmarketing reports: Hypertriglyceridemia[Ref]


Postmarketing reports: Arthralgia, back pain, myalgia

Fetal/Neonatal Patients:

-Postmarketing reports: Abnormal bone development, skeletal malformations of skull/face/nasal passages/jaw/hand limb/foot/spine/joints[Ref]


Frequency not reported: Fatigue, vertigo, weight gain, weight loss

Postmarketing reports: Fever, tinnitus, weakness, edema

Fetal/Neonatal Patients:

-Postmarketing reports: Down's syndrome, ear abnormal, deafness[Ref]


Frequency not reported: Depression, insomnia, nervous tension

Postmarketing reports: Anxiety, irritability, mood changed, psychosis

Fetal/Neonatal Patients:

Postmarketing reports: Intellectual disability[Ref]


Postmarketing reports: Pulmonary embolism, shortness of breath

Fetal/Neonatal Patients:

-Postmarketing reports: Lung tissue malformation[Ref]


Fetal/Neonatal Patients:

-Postmarketing reports: Renal agenesis, renal dysgenesis[Ref]

Frequently asked questions


1. Product Information. ClomiPHENE Citrate (clomiPHENE). Teva Pharmaceuticals USA. 2022.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.