| The following CIOMS frequency rating is used, when applicable: Very common (≥1/10); common (≥1/100 to <1/10); uncommon (≥1/1,000 to ≤1/100); rare (≥1/10,000 to ≤1/1,000); very rare (≤1/10,000); not known (cannot be estimated from the available data). | | Very common
| Common
| Uncommon
| Rare
| Not known
| | Eye disorders | | Visual symptoms: blurring, spots, flashes (scintillating scotomata), after images
| | Cataracts, Optic neuritis
| Scotomata, phosphenes, reduced visual acuity
| | Pregnancy, puerperium and perinatal conditions | | | | | Multiple pregnancies, Simultaneous intrauterine and extra uterine pregnancies, ectopic pregnancy
| | Neoplasms benign, malignant and unspecified (incl. cysts and polyps) | | | | | Endocrine related or dependent tumors/neoplasms
Ovarian cancer (see section 4.4)
| | Nervous system disorders | | Headache,
| Dizziness, Light-headedness/ vertigo, Nervous tension /insomnia, Fatigue
| Seizures
| Syncope/fainting, Cerebrovascular accident, Cerebral thrombosis Neurologic impairment, Disorientation and speech disturbance
| | Psychiatric disorders | | | Depression
| | Paranoid psychosis,
| | Vascular disorders | Flushing
| | | | | | Hepatobiliary disorders | | | | | Impaired hepatocellular function: abnormal bromosulphalein test (see below) , Jaundice
| | Gastrointestinal disorders | | Nausea, Vomiting, Distension, Bloating
| | | Pancreatitis
| | Skin and subcutaneous tissue disorders | | | | | Urticaria, Dermatitis/rash, Alopecia
Erythema multiform, Ecchymosis, Angioneurotic oedema
| | Reproductive system and breast disorders | Ovarian enlargement
| Breast discomfort, Inter-menstrual spotting or menorrhagia
| | | Endometriosis, exacerbation of pre-existing endometriosis
Massive ovarian enlargement
| | Metabolism and nutrition disorders | | | | | Hypertriglyceridemia
| | Immune System Disorders | | | | | Allergic reaction
| Symptoms/Signs/Conditions: Adverse effects appeared to be dose-related, occurring more frequently at the higher dose and with the longer courses of treatment used in investigational studies. At recommended dosage, adverse effects are not prominent and infrequently interfere with treatment.Reproductive system and breast disorders: At recommended dosage, abnormal ovarian enlargement is infrequent although the usual cyclic variation in ovarian size may be exaggerated. Similarly, cyclic ovarian pain (mittelschmerz) may be accentuated. With higher or prolonged dosage, more frequent ovarian enlargement and cyst formation may occur, and the luteal phase of the cycle may be prolonged.Rare instances of massive ovarian enlargement are recorded. Such an instance has been described in a patient with polycystic ovary syndrome whose Clomid therapy consisted of 100mg daily for 14 days. Abnormal ovarian enlargement usually regresses spontaneously; most of the patients with this condition should be treated conservatively.Eye disorders: Symptoms described usually as blurring or spots or flashes (scintillating scotomata) increase in incidence with increasing total doseThese symptoms appear to be due to intensification and prolongation of after-images. After-images as such have also been reported. Symptoms often first appear or are accentuated with exposure to bright-light environment. Ophthalmologically definable scotomata, phosphenes and reduced visual acuity have been reported. There are rare reports of cataracts and optic neuritis. These visual symptoms are usually reversible; however, cases of prolonged visual disturbance have been reported including after Clomid discontinuation. The visual disturbances may be irreversible, especially with increased dosage or duration of therapy (See section 5)Hepatobiliary disorders: The Bromsulphalein test (BSP) is a test of liver function based on the removal of a known quantity of Brom-sulphalein from the blood in a measured period of time. Normal values are less than 5% retention at the end of 45 minutes with an intravenous dose of 5 mg/kg body weight. It is a useful test of hepatocellular disease and detoxifying ability but is not applicable in the presence of extra-hepatic or intrahepatic obstructive jaundice.Bromsulphalein (BSP) retention of greater than 5% was reported in 32 of 141 patients in whom it was measured, including 5 of 43 patients who took approximately the dose of Clomid now recommended. Retention was usually minimal unless associated with prolonged continuous Clomid administration or with apparently unrelated liver disease. Other liver function tests were usually normal. In a later study in which patients were given 6 consecutive monthly courses of Clomid (50 or 100mg daily for 3 days) or matching placebo, BSP tests were done on 94 patients. Values in excess of 5% retention were recorded in 11 patients, 6 of whom had taken drug and 5 placebo. In a separate report, one patient taking 50mg of Clomid daily developed jaundice on the 19th day of treatment; liver biopsy revealed bile stasis without evidence of hepatitis.Metabolism Disorders: Hypertriglyceridemia , in some cases with pancreatitis, has been observed in patients with pre-existing or a family history of hypertriglyceridemia and/or with dose and duration of treatment exceeding the label recommendations. | |