Cephalexin Side Effects: What Men Should Watch Out For

If you’ve been prescribed Cephalexin, you’re probably glad the infection is finally being tackled. But like any medication, it can bring some unwanted reactions. Knowing what to expect helps you act fast and avoid a bigger problem.

Common Digestive Issues

The most frequent complaints are stomach‑related. Some men feel a mild nausea or an uncomfortable bloated feeling within the first day of treatment. It’s usually short‑lived, but if it turns into persistent vomiting, you should talk to your pharmacist.

Diarrhea is another head‑liner. Cephalexin can upset the balance of good bacteria in your gut, leading to loose stools or an urgent bathroom sprint. Most cases are mild and settle when the course ends, but watery diarrhea that lasts more than a couple of days might signal a deeper issue called C. difficile infection. In that case, stop the drug and call your doctor.

Skin Reactions & When to Call a Doctor

A rash can pop up anywhere on the body—sometimes as tiny red spots, other times as an itchy, spreading welts. If you notice a rash that gets worse or is accompanied by fever, it could be an allergic reaction. Seek medical attention right away; severe reactions may require stopping Cephalexin and starting an alternative.

Other skin signs include hives and swelling of the face or lips. These are rare but serious. Even if you’ve never had a drug allergy before, your body can react unpredictably when it meets a new compound.

Beyond rash, some men notice a tingling sensation in their hands or feet. While uncommon, this nerve‑related side effect should be reported, especially if it interferes with daily tasks.

In most cases, Cephalexin’s side effects are mild and manageable. Keep hydrated, eat a balanced diet, and consider probiotic foods like yogurt to support gut health. If any symptom feels out of the ordinary—especially severe diarrhea, high fever, or a spreading rash—don’t wait for the next dose; contact your healthcare provider.

Remember, you’re not alone in dealing with medication side effects. Knowing the warning signs empowers you to stay on top of your health while the antibiotic does its job.