Generic Name: Cefprozil

  • What is Cefzil?

    Cefzil is a cephalosporin antibiotic that is used to treat mild to moderately severe bacterial infections of the ear, respiratory tract, sinuses, skin, and throat.

  • What is the most important information I should know about Cefzil?

    If you are allergic to penicillin or cephalosporin antibiotics in any form, consult your doctor before taking Cefzil. You may be allergic to Cefzil, and if a reaction occurs it could be extremely severe. If you take the drug and feel signs of a reaction, seek medical attention immediately.

    Pseudomembranous colitis (an infection of the colon resulting in diarrhea) has been reported with nearly all antibacterial agents, including Cefzil, and may range in severity from mild to life-threatening. Therefore, it is important to tell your doctor if you have diarrhea during or after treatment with antibacterial agents such as Cefzil.

    Antibacterial drugs, such as Cefzil, should only be used to treat bacterial infections; they do not treat viral infections, such as the common cold.

  • Who should not take Cefzil?

    Do not take Cefzil if you are sensitive to or have ever had an allergic reaction to this drug or to similar products.

  • What should I tell my doctor before I take the first dose of Cefzil?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Cefzil. Also, talk to your doctor about your complete medical history, especially if you have kidney disease or have a history of stomach disease (especially colitis).

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults (≥13 years):
    500 milligrams (mg) every 12 hours for 10 days.

    Ear Infections
    Infants and children (6 months-12 years):
    15 mg per 2.2 pounds of body weight every 12 hours for 10 days.

    Adults (≥13 years): 500 mg once a day for 10 days.

    Children (2-12 years): 7.5 mg per 2.2 pounds of body weight every 12 hours for 10 days.

    Sinus Infection
    Adults (≥13 years):
    250 mg every 12 hours for 10 days. For moderate to severe infections, the dose is 500 mg every 12 hours for 10 days.

    Infants and children (6 months-12 years): 7.5 mg or 15 mg per 2.2 pounds of body weight every 12 hours for 10 days.

    Skin Infections
    Adults (≥13 years): 250 mg or 500 mg every 12 hours for 10 days, or 500 mg once daily for 10 days.

    Children (2-12 years): 20 mg per 2.2 pounds of body weight once a day for 10 days.

  • How should I take Cefzil?

    Take Cefzil by mouth and with food to avoid stomach upset. Shake Cefzil oral suspension before you use it.

  • What should I avoid while taking Cefzil?

    Do not stop taking Cefzil even if you feel better. Not completing the full dosage schedule may decrease the drug's effectiveness and increase the chances that the bacteria may become resistant to Cefzil and similar antibiotics.

  • What are possible food and drug interactions associated with Cefzil?

    If Cefzil is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Cefzil with the following: certain antibiotics such as amikacin, certain strong diuretics such as ethacrynic acid or furosemide, or probenecid.

  • What are the possible side effects of Cefzil?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: abdominal pain, confusion, diaper rash, diarrhea, difficulty sleeping, dizziness, elevated liver enzymes, genital itching, headache, hives, hyperactivity, nausea, nervousness, rash, sleepiness, superinfection (additional infection), vaginal inflammation, vomiting

  • Can I receive Cefzil if I am pregnant or breastfeeding?

    The effects of Cefzil during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Cefzil?

    Take it as soon as you remember. If it is almost time for your next dose, skip the dose you missed and go back to your regular schedule. Never take two doses at the same time.

  • How should I store Cefzil?

    Store tablets at room temperature. Refrigerate the oral suspension and throw away any unused portion after 14 days.

Meet the Pharmacists

I'm Kristen Dore, PharmD. Welcome to PDR Health!

Check out my latest blog post on heartburn medication

Cefzil Related Drugs

Cefzil Related Conditions