Common Keflex side effects include dizziness, diarrhea, and unexplained rash. However, most people tolerate the drug without problems -- a healthcare provider can easily treat most side effects if they do occur. Serious side effects of Keflex include severe or watery diarrhea, peeling of the skin, and unexplained bleeding or bruising. If you experience any of these side effects, stop taking Keflex and call your healthcare provider.
An Introduction to Keflex Side Effects
As with any medicine, side effects are possible with
Keflex® (
cephalexin); however, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If Keflex side effects do occur, in most cases, they are minor, meaning they require no treatment or are easily treated by your healthcare provider.
(This article covers many, but not all, of the possible side effects with Keflex. Your healthcare provider can discuss a more complete list of Keflex side effects with you.)
Common Side Effects of Keflex
Keflex has been studied extensively in clinical trials, with thousands of people worldwide having been evaluated. In these studies, side effects are always documented and compared to people not taking the medicine.
Based on these studies, the most common Keflex side effects occurring in either adults or children included:
Serious Keflex Side Effects
Some side effects of Keflex can indicate a serious problem. If you experience any of these side effects, stop taking Keflex and call your healthcare provider. These side effects include but are not limited to:
- Hives
- Severe or watery diarrhea
- Blood in stools
- Throat or mouth sores
- Unexplained bleeding or bruising
- Severe rash
- Itching
- Wheezing
- Difficulty breathing or swallowing
- Swelling of the throat
- Peeling of the skin.
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