Femara Side Effects

Although most people have no problems when taking Femara, side effects can potentially occur during treatment with the medicine. A few commonly reported side effects of Femara include hot flashes, fatigue, headaches, and back pain. Some serious Femara side effects include unexplained vaginal bleeding, signs of an allergic reaction, and difficulty breathing. If you experience these or other serious side effects, let your healthcare provider know right away.

 

An Introduction to Femara Side Effects

As with any medicine, side effects are possible with Femara® (letrozole); however, not everyone who takes the medication will experience side effects. In fact, most people tolerate Femara quite well. When side effects do occur, in most cases they are minor and either 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 Femara. Your healthcare provider can discuss a more complete list of Femara side effects with you.)
 

Common Femara Side Effects

Femara has been studied thoroughly in clinical trials. In these studies, the side effects that occur in a group of people taking the drug are documented and are then compared to side effects that occur in another group of people not taking the medicine. In these studies, the most common side effects of Femara included:
 
Some other common side effects (occurring in 2 percent to 15 percent of people) included:
 
(Femara Side Effects Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;