This medicine is a cephalosporin antibiotic used to treat bacterial infections. This medicine will not treat infections caused by viruses.

Before Using Keflex

Inform your doctor or pharmacist of all prescription and over-the-counter medicine that you are taking.

Additional monitoring of your dose or condition may be needed if you are taking probenecid.

Do not start or stop any medicine without doctor or pharmacist approval.

Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding. Contact your doctor or pharmacist if you have any questions or concerns about taking this medicine.

Directions for using Keflex

Follow the directions for using this medicine provided by your doctor.

This medicine may be taken on an empty stomach or with food.

Store this medicine at room temperature, away from heat and light.

To clear up your infection completely, continue taking this medicine for the full course of treatment even if you feel better in a few days. Do not miss any doses.

If you miss a dose of this medicine, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Cautions

If you have had a severe allergic reaction to a cephalosporin antibiotic (such as Ceclor, Keflex, Ceftin, Duricef) or a penicillin antibiotic (such as amoxicillin, ampicillin), contact your doctor or pharmacist BEFORE TAKING THIS MEDICINE. A severe reaction includes a severe rash, hives, breathing difficulties, or dizziness.

If you have a question about whether you are allergic to this medicine or if a certain medicine is a cephalosporin, contact your doctor or pharmacist.

If you experience difficulty breathing or tightness of chest; swelling of eyelids, face, or lips; or develop a rash or hives, tell your doctor immediately. Do not take any more of this medicine unless your doctor tells you to do so. If your symptoms do not improve within a few days or if they become worse, check with your doctor.

If moderate to severe diarrhea ocurs during or after treatment with this medicine, check with your doctor or pharmacist. Do not treat it with non-prescription (over-the-counter) medicines.

Before you begin taking any new medicine, either prescription or over-the-counter, check with your doctor or pharmacist.

Caution should be used in the elderly since they may be more sensitive to the effects of this drug.

If you have diabetes, this medicine may cause false test results with some urine glucose tests. Check with your doctor before you adjust the dose of your diabetes medicine or change your diet.

Side Effects

Side effects, that may occur while taking this medicine include nausea, tiredness, headache, vomiting, or mild diarrhea. If they continue or are bothersome, check with your doctor.

Check with your doctor as soon as possible if you experience vaginal irritation or discharge.

Contact your doctor immediately if you experience seizures.

An allergic reaction to this medicine is unlikely, but seek immediate medical attention if it occurs. Symptoms of an allergic reaction include rash, itching, swelling, dizziness, or trouble breathing. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist.

If you take too much

If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include muscle spasms and seizures.

More Information

If your symptoms do not improve within a few days or if they become worse, check with your doctor.

Do not share this medicine with others for whom it was not prescribed.

Do not use this medicine for other health conditions.

Keep this medicine out of the reach of children.