The Truth About Keflex Side Effects

The Truth About Keflex Side Effects

If you’ve been prescribed Keflex (cephalexin) for a bacterial infection, it’s important to be aware of the potential side effects that may occur while taking this medication. While Keflex is generally well-tolerated by most people, there are some common side effects that you should watch out for.

Common Keflex Side Effects

  • Nausea and vomiting: Some people may experience stomach upset, nausea, or vomiting while taking Keflex.
  • Diarrhea: Antibiotics like Keflex can disrupt the balance of bacteria in your gut, leading to diarrhea.
  • Headache: Headaches are a common side effect of many medications, including Keflex.
  • Dizziness: Some people may feel dizzy or lightheaded while taking Keflex.

Rare but Serious Side Effects

In rare cases, Keflex can cause more serious side effects that require immediate medical attention. These may include:

  • Allergic reactions: Some people may develop a rash, itching, or swelling of the face, tongue, or throat. In severe cases, an allergic reaction to Keflex can lead to difficulty breathing and require emergency treatment.
  • Severe skin reactions: Rarely, Keflex can cause serious skin conditions like Stevens-Johnson syndrome or toxic epidermal necrolysis.
  • Severe diarrhea: In rare cases, Keflex can cause a serious condition called Clostridium difficile-associated diarrhea, which requires prompt medical treatment.

Frequently Asked Questions About Keflex Side Effects

  1. Q: Can I take Keflex if I have a penicillin allergy?
  2. A: While Keflex is not a penicillin, some people with penicillin allergies may also be allergic to cephalosporins like cephalexin. It’s important to discuss any drug allergies with your healthcare provider before taking Keflex.

  3. Q: Are there any interactions with other medications?
  4. A: Keflex may interact with certain medications, including blood thinners, probenecid, and live vaccines. Be sure to inform your doctor or pharmacist about all the medications you are taking before starting Keflex.

Remember, everyone reacts differently to medications, so it’s essential to keep an open line of communication with your healthcare provider if you experience any side effects while taking Keflex. They can help determine whether the benefits of the medication outweigh the risks of potential side effects.

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