Generic Name: Sulbactam

  • What is Unasyn?

    Unasyn is an antibiotic used to treat certain bacterial infections of the genital tract, abdomen, or skin. It may also be used to treat other bacterial infections, as determined by your doctor. Unasyn can be administered intravenously (through a vein in your arm) or intramuscularly (injected into the muscle).

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

    Your doctor will not administer Unasyn to you if you are allergic to it or any of its ingredients. If you are allergic to penicillin antibiotics, it is possible for you to have an allergic reaction to this medication. Tell your doctor immediately if you receive Unasyn and develop a rash, swelling, or difficulty breathing.

    Unasyn can cause diarrhea or colitis (inflammation of the colon). This can occur a couple of months after receiving the last dose of Unasyn. Tell your doctor immediately if you have diarrhea or colitis.

    Using Unasyn may result in false-positive reactions when testing for the presence of sugar in the urine using certain testing devices.

  • Who should not take Unasyn?

    Your doctor will not administer Unasyn to you if you are allergic to it, any of its ingredients, or to similar antibiotics (such as cephalexin, ceftriaxone, or penicillin).

    Your doctor will not administer Unasyn to you to treat viral infections, such as the common cold.

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

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Unasyn. Also, talk to your doctor about your complete medical history, especially if you have allergies, kidney disease, or liver problems.

  • 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: Your doctor will administer the appropriate dose for you based on your condition.

    If you have kidney impairment, your doctor will adjust your dose appropriately.

    Children ≥1 year: Your doctor will administer the appropriate dose for your child, based on their weight.

  • How should I take Unasyn?

    Your doctor will administer Unasyn to you.

  • What should I avoid while taking Unasyn?

    Do not miss your scheduled follow-up appointments with your doctor.

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

    If Unasyn is used with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to tell your doctor if you are taking any of the following prior treatment with Unasyn: allopurinol or probenecid.

  • What are the possible side effects of Unasyn?

    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: allergic reactions, colitis, diarrhea, injection-site reactions, itchiness, kidney or liver problems, nausea, oral thrush (a fungal infection in the mouth, throat, and tongue), pain at the injection site, rash, swelling, vomiting

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

    The effects of Unasyn 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 Unasyn?

    Unasyn should be given under special circumstances determined by your doctor.

  • How should I store Unasyn?

    Your doctor will store this medication for you.