Classes
DEA Class; Rx
Common Brand Names; Clomid, Serophene
- Selective Estrogen Receptor Modulators
Description
Binds to estrogen receptors, induces ovulation by increase output of pituitary gonadotropins
Indications
Indicated for treatment of Treatment of Ovulatory Failure
Contraindications
Pregnancy
Liver disease or history of liver disease
Undiagnosed abnormal uterine bleeding
Uncontrolled thyroid or adrenal dysfunction
Endometrial cancer
Ovarian cysts not due to PCOS
Presence of organic intracranial lesion, including pituitary tumor
Adverse Effects
Ovarian enlargement (14%)
Vasomotor flushing (10%)
Abdominal discomfort (6%)
Blurred vision (1.5%)
Breast discomfort (2%)
Nausea/vomiting (2%)
Body as a whole: Fever, tinnitus, weakness
Cardiovascular: Arrhythmia, chest pain, edema, hypertension, palpitation, phlebitis, pulmonary embolism, shortness of breath, tachycardia, thrombophlebitis
Central nervous system: Migraine headache, paresthesia, seizure, stroke, syncope
Dermatologic: Acne, allergic reaction, erythema, erythema multiforme, erythema nodosum, hypertrichosis, pruritus, urticaria
Genitourinary: Endometriosis, ovarian cyst (ovarian enlargement or cysts could, as such, be complicated by adnexal torsion), ovarian hemorrhage, tubal pregnancy, uterine hemorrhage; reduced endometrial thickness
Hepatic: Transaminases increased, hepatitis, pancreatitis
Musculoskeletal: Arthralgia, back pain, myalgia
Warnings
Careful attention should be given to selection of candidates for therapy; pelvic examination is necessary prior to treatment and before each subsequent course
Uterine fibroids, pituitary or ovarian failure may occur
Potential for multiple births, especially at 100 mg dosage
Use should be supervised by a practitioner with training and thoroughly familiar with infertility problems and their management
Risk of visual disturbance (like scotoma & photopsia); patients should be warned that visual symptoms may render activities such as driving a car or operating machinery more hazardous than usual, particularly under conditions of variable lighting; while etiology of visual symptoms is not yet understood, patients with any visual symptoms should discontinue treatment and have complete ophthalmological evaluation carried out promptly
Cases of hypertriglyceridemia reported; preexisting or family history of hyperlipidemia and use of higher than recommended dose and/or longer duration of treatment are associated with risk of hypertriglyceridemia; periodic monitoring of plasma triglycerides is recommended in patients with preexisting or family history of hyperlipidemia; pretreatment screening of triglyceride levels is recommended in patients initiating therapy
Cases of pancreatitis reported
Prolonged use of clomiphene citrate tablets USP may increase risk of a borderline or invasive ovarian tumor
Presence of organic intracranial lesion, including pituitary tumor
Pregnancy and Lactation
Use in pregnant women is contraindicated, as treatment does not offer benefit in this population; to avoid inadvertent administration during early pregnancy, appropriate tests should be utilized during each treatment cycle to determine whether ovulation and/or pregnancy occurs; patients should be evaluated carefully to exclude ovarian enlargement or ovarian cyst formation between each treatment cycle; the next course of therapy should be delayed until these conditions have been excluded
It is not known whether drug is excreted in human milk; because many drugs are excreted in human milk, caution should be exercised if drug is administered to a nursing woman; in some patients, therapy may reduce lactation
Maximum Dosage
50 mg PO qDay initially for 5 days
If no ovulation, treatment can be repeated as early as 30 days after previous therapy; exclude presence of pregnancy; use the lowest effective dose
Dosage can be increased to 100 mg only in patients who do not respond to first course; lower doses of 12.5-25 mg qDay may be administered in women sensitive to the drug or who consistently develop large ovarian cysts
Pediatric
Not indicated
How supplied
Clomiphene
tablet
- 50mg