Penbritin-S

Name: Penbritin-S

Why is this medication prescribed?

Ampicillin injection is used to treat certain infections that are caused by bacteria such as meningitis (infection of the membranes that surround the brain and spinal cord) and lung, blood, heart, urinary tract, and gastrointestinal tract infections. Ampicillin injection is in a class of medications called penicillins. It works by killing bacteria.

Antibiotics such as ampicillin injection will not work for colds, flu, or other viral infections. Taking antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.

What special precautions should I follow?

Before receiving ampicillin injection,

  • tell your doctor and pharmacist if you are allergic to ampicillin; penicillins; cephalosporin antibiotics such as cefaclor, cefadroxil, cefazolin (Ancef, Kefzol), cefdinir, cefditoren (Spectracef), cefepime (Maxipime), cefixime (Suprax), cefotaxime (Claforan), cefotetan, cefoxitin (Mefoxin), cefpodoxime, cefprozil, ceftaroline (Teflaro), ceftazidime (Fortaz, Tazicef, in Avycaz), ceftibuten (Cedax), ceftriaxone (Rocephin), cefuroxime (Zinacef), and cephalexin (Keflex); any other medications; or any of the ingredients in ampicillin injection. Ask your pharmacist for a list of the ingredients.
  • tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: allopurinol (Aloprim, Zyloprim); other antibiotics; oral contraceptives; and probenecid (in Col-Probenecid, Probalan). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
  • tell your doctor if you have mononucleosis (a virus also called 'mono') or have or have ever had allergies, asthma, hives, or hay fever.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while receiving ampicillin injection, call your doctor.

What special dietary instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What side effects can this medication cause?

Ampicillin injection may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • nausea
  • diarrhea
  • vomiting

Some side effects can be serious. If you experience any of these symptoms, stop receiving ampicillin injection and call your doctor immediately or get emergency medical treatment:

  • rash
  • itching
  • hives
  • difficulty breathing or swallowing
  • severe diarrhea (watery or bloody stools) that may occur with or without fever and stomach cramps (may occur up to 2 months or more after your treatment)
  • seizures
  • a return of fever, cough, sore throat, chills, and other signs of infection

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).

What other information should I know?

Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your body's response to ampicillin injection.

If you are diabetic and test your urine for sugar, use Clinistix or TesTape (not Clinitest) to test your urine while using this medication.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand names

  • Omnipen-N®
  • Penbritin-S®
  • Polycillin-N®
  • Totacillin-N®
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