Clomid Side Effects
Enlarged ovaries, hot flashes, and abdominal or pelvic pain are some of the most common side effects seen with Clomid. Side effects that are less common and occur in less than 1 percent of patients may include constipation, diarrhea, and fatigue. Although most Clomid side effects are considered minor, certain side effects should be reported to your healthcare provider immediately, including any signs of an allergic reaction, changes in vision, or severe abdominal pain.
As with any medicine, there are possible side effects with Clomid® (clomiphene citrate). However, not everyone who takes the medication will experience side effects. In fact, most people tolerate Clomid well. When people do develop side effects, in most cases they are minor, meaning they require no treatment or are easily treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Clomid. Your healthcare provider can discuss a more complete list of Clomid side effects with you.)
Clomid has been studied thoroughly in clinical trials, with many women having been evaluated. In these studies, side effects occurring in the group of people taking the drug were documented and compared to the side effects that occurred in a similar group of people not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
Based on these studies, the most common Clomid side effects include:
- Enlargement of the ovaries -- up to 13.6 percent of women
- Hot flashes -- up to 10.4 percent
- Abdominal (stomach) or pelvic pain or bloating -- up to 5.5 percent
- Upset stomach (nausea) or vomiting -- up to 2.2 percent
- Breast pain -- up to 2.1 percent
- Headache -- up to 1.3 percent (see Clomid and Migraines)
- Abnormal menstrual bleeding, including spotting between periods or long, heavy periods -- up to 1.3 percent.