When This Medicine Should Not Be Used:
You should not use this medicine if you have ever had an allergic reaction to cefonicid or any other cephalosporin medicine such as Keflex®, Ceclor®, or Duricef®.

How to Use This Medicine:
Injectable

• Your doctor will prescribe your exact dose and tell you how often it should be given.
• An IM injection is a shot given in your muscle (upper arm, thigh, buttocks). An IV infusion is medicine that is put directly into your body through one of your veins.
• This medicine should be given by a person trained to give IV or IM medicine, such as a nurse. Sometimes you, a family member, or friend can be taught to give your medicine.
• If you are receiving IV medicine, check the bag to make sure there are no leaks. Also make sure the liquid is clear.
• If you miss a dose:
• This medicine needs to be given on a regular schedule. Take the missed dose as soon as you remember. Space out evenly the rest of the doses for that day. If you have questions about what times to take your dose, call your doctor.
• If you miss more than one dose, call your doctor for instructions.

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

Warnings While Using This Medicine:

• If you are pregnant or breastfeeding, talk to your doctor before taking this medicine.
• Before taking this medicine, tell your doctor if you have ever had an allergic reaction to penicillin.
• Make sure your doctor knows if you have liver or kidney disease or if you have had colitis.
• If the medicine gives you diarrhea, check with your doctor before taking medicine to stop the diarrhea.
• If your infection does not improve, or if it gets worse, while taking this medicine, talk to your doctor.

Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:

• Rash or hives
• Swelling of the face, throat, or lips
• Wheezing or trouble breathing
• Severe diarrhea (watery or bloody)
• Swelling, pain, or redness near where your IV is located

If you notice these less serious side effects, talk with your doctor:

• Mild diarrhea or nausea
• Vaginal itching or discharge
• Pain where the IM shot was given

If you notice other side effects that you think are caused by this medicine, tell your doctor.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088