PrescriptionGiant is a FREE prescription savings program that can save you up to 75% on your prescriptions with or without insurance!

Aminobenzylpenicillin (Generic Ampicillin Injection)

Actual product appearance may differ slightly.

Click the CARD below to print or take a screenshot on your mobile phone or tablet. There is no need to download another app!

If you would like to personalize your card enter your full name in the member name field below the card at this link and click the Update button.

Why is this medication prescribed?

Meningitis, an infection of the membranes encasing the brain and spinal cord, as well as lung, blood, heart, urinary system, and gastrointestinal tract infections are among the infections that are treated with ampicillin injection. The drug ampicillin injection belongs to the penicillin drug class. It eliminates bacteria to operate.

Colds, the flu, or other viral diseases cannot be treated with antibiotics such as ampicillin injection. Antibiotic use that is not necessary raises the likelihood of developing a later infection that is resistant to antibiotic treatment.

How should this medicine be used?

Ampicillin injection is available as a powder to be injected intravenously (into a vein) or intramuscularly after being diluted with fluid (into a muscle). Your infection kind will determine how frequently and how long you need to receive treatment.

Ampicillin injections can be administered either in a hospital setting or at home. Your healthcare practitioner will instruct you on how to utilise the medication if you will be receiving ampicillin injection at home. Make sure you comprehend these instructions, and if you have any issues, consult your healthcare professional.

During the initial days of ampicillin injectable therapy, you should start to feel better. Call your doctor if your symptoms don’t go away or get worse.

Even if you feel better, continue to administer ampicillin injection until the prescription is finished. Your illness might not be entirely treated if you stop taking ampicillin injection too soon or skip doses, and the bacteria might develop an antibiotic resistance.

Other uses for this medicine

Some pregnant women also take ampicillin injection to avoid infecting the unborn child during delivery. Ampicillin injection is occasionally used to treat infections in patients undergoing specific procedures. The dangers of using this drug for your illness should be discussed with your doctor.

Ask your doctor or pharmacist for more details if you believe this drug should be used for something else.

What special precautions should I follow?

Before receiving ampicillin injection,

  • Inform your doctor and pharmacist if you have any allergies to ampicillin, penicillins, cephalosporin antibiotics like cefpodoxime, cefprozil, ceftaroline (Teflaro), ceftibuten (Cedax), ceftriaxone (Rocephin), cefuroxime (Zinacef), and cephalexin (Keflex), as well as any other medications. Request an ingredient list from your pharmacist.
  • Inform your doctor and pharmacist about any additional prescription and over-the-counter drugs, vitamins, dietary supplements, and herbal products you are now taking or intend to use. Allopurinol (Aloprim, Zyloprim), additional antibiotics, oral contraceptives, and probenecid should be mentioned (in Col-Probenecid, Probalan). Your physician might need to adjust the dosage of your drugs or keep a close eye on you for side effects.
  • Inform your physician if you have mononucleosis (a virus sometimes known as “mono”), allergies, asthma, hives, or hay fever.
  • If you are breastfeeding a child or intend to become pregnant, let your doctor know. Call your doctor if you conceive while taking an ampicillin injection.

What special dietary instructions should I follow?

Keep eating normally unless your doctor instructs you otherwise.

What side effects can this medication cause?

Side effects from ampicillin injection are possible. If any of these symptoms are severe or do not go away, let your doctor know right once:

  • Nausea
  • Diarrhea
  • Vomiting

Some adverse effects can be very harmful. Avoid obtaining ampicillin injections if you suffer any of these symptoms, call your doctor right away, or seek emergency medical attention:

  • Rash
  • Itching
  • Hives
  • Breathing or swallowing challenges
  • Severe diarrhoea (watery or bloody faeces), which may or may not be accompanied by fever and cramping in the stomach (may occur up to 2 months or more after your treatment)
  • Seizures
  • A recurrence of infection symptoms such a fever, cough, sore throat, chills, and others

You or your doctor can submit a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting programme online or by phone if you have a serious side event (1-800-332-1088).

What should I know about storage and disposal of this medication?

The best way to preserve your medication will be advised by your doctor. Just as prescribed, only store your prescription. Be sure to know the right way to store your medications.

Unused prescriptions must be disposed of carefully to prevent pets, kids, and other people from ingesting them. You should not, however, dispose of this medication in the toilet. Instead, utilising a medicine take-back programme is the easiest approach to get rid of your medication. To find out about take-back programmes in your area, speak with your pharmacist or the garbage/recycling department in your city. If you do not have access to a take-back programme, see the FDA’s Safe Disposal of Medicines website at for additional information.

In case of emergency/overdose

Call the poison control hotline at 1-800-222-1222 in the event of an overdose. Additionally, information can be found online at Call 911 right once if the person has collapsed, experienced a seizure, is having difficulty breathing, or cannot be roused.

What other information should I know?

Keep all of your appointments with your physician and the lab. To monitor how your body reacts to ampicillin injection, your doctor may request specific lab tests.

Use Clinistix or TesTape (not Clinitest) to test your urine for sugar if you have diabetes and are taking this medicine.

You should keep a written record of every medication you take, including any over-the-counter (OTC) items, prescription drugs, and dietary supplements like vitamins and minerals. This list should be brought with you whenever you see a doctor or are admitted to the hospital. You should always have this information with you in case of emergencies.

Brand names

  • Omnipen-N®
  • Penbritin-S®
  • Polycillin-N®
  • Totacillin-N®
Copyright © 2023