We want to make sure you fully understand your treatment. Below outlines the directions, benefits and risks with Cephalexin.

Cephalexin is an oral antibiotic used to treat acne. It works primarily by reducing inflammation.

Oral antibiotics are used as bridge therapy while topical medicines take effect. They should always be taken with topical treatment. Patients typically take this medication for 3-6 months, after which topical treatments are continued to keep skin clear.


Take as instructed. Be consistent for best results and to minimize side effects.

May take with food. This can help prevent stomach upset.

Take a probiotic. This can help prevent yeast infections and maintain healthy gut bacteria.

Do NOT take this medication if:

  • You are allergic to cephalosporins or penicillin.
  • You have kidney problems or recent antibiotic-associated colitis.
  • You are taking probenicid or metformin.


The most common side effects include diarrhea, nausea, vomiting, indigestion and abdominal pain.

Stop this medication if you develop hives or rash, worsening diarrhea, or any unusual side effects.

Please check with your doctor before taking this if pregnant or nursing.