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Side effects of clomiphene include:
Women who become pregnant after clomiphene therapy have an approximately 5% to 8% chance of multiple pregnancy.3 This compares to a 1% to 2% chance in the general North American and European population.2 Multiples resulting from clomiphene treatment are almost exclusively twins. Triplets are rare.3
In some studies, miscarriage rates are slightly higher in women who become pregnant using clomiphene. It is not clear if this is related to an early hormonal effect on the egg or to preexisting conditions such as age or polycystic ovary syndrome, which are found more often in women who take clomiphene. Other studies have not shown an increased miscarriage rate.3
Clomiphene has not been observed to harm the fetus.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)
| By: | Healthwise Staff | Last Revised: March 19, 2010 |
| Medical Review: | Sarah Anne Marshall, MD - Family Medicine Femi Olatunbosun, MB, FRCSC - Obstetrics and Gynecology | |
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