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Home > Drugs > Aminopenicillins > Ampicillin (injection)
Aminopenicillins

Ampicillin (injection)

https://themeditary.com/drug/ampicillin-injection-7737.html
Medically Reviewed by Glamora Samuels, MD TheMediTary.Com | Reviewed: Aug 16, 2023  Additional Content by TheMediTary.Com

Generic name: ampicillin (injection) [ amp-i-sil-in ]

Drug class: Aminopenicillins

Dosage form: injectable powder for injection (1 g; 10 g; 125 mg; 2 g; 250 mg; 500 mg)

Availability: Prescription only

Pregnancy & Lactation: Risk data available

Brand names: Ampicillin, Omnipen-n (injection), Totacillin-n (injection)

Contents
Uses Warnings Before Taking Dosage Side effects Interactions
  • Ampicillin (injection) (Ampicillin (injection) [ amp-i-sil-in ])-MYLAN 116 MYLAN 116-500 mg-Red / Gray-Capsule-shape Ampicillin (injection) 500 mg (MYLAN 116 MYLAN 116)
  • Ampicillin (injection) (Ampicillin (injection) [ amp-i-sil-in ])-AMP 250-250 mg-Blue & White-Capsule-shape Ampicillin (injection) 250 mg (AMP 250)
  • Ampicillin (injection) (Ampicillin (injection) [ amp-i-sil-in ])-AMP 500-500 mg-Blue & White-Capsule-shape Ampicillin (injection) 500 mg (AMP 500)
  • Ampicillin (injection) (Ampicillin (injection) [ amp-i-sil-in ])-93 3111-250 mg-Gray & Red-Oval Ampicillin (injection) 250 mg (93 3111)
  • View all images

What is Ampicillin (injection)?

Ampicillin is a penicillin antibiotic that fights bacteria.

Ampicillin injection is used to treat or prevent many different types of infections such as bladder infections, pneumonia, meningitis, gonorrhea, and infections of the stomach, intestines, heart, or blood.

Ampicillin may also be used for purposes not listed in this medication guide.

Warnings

You should not use ampicillin if you are allergic to any penicillin antibiotic.

How should I use Ampicillin (injection)

Ampicillin is injected into a muscle, or into a vein through an IV. You may be shown how to use an IV at home. Do not self-inject ampicillin if you do not understand how to give the injection and properly dispose of used needles, IV tubing, and other items used to inject the medicine.

You may need to mix ampicillin with a liquid (diluent) before using it. If you are using the injections at home, be sure you understand how to properly mix and store the medicine. You should use the injection as soon as possible after mixing it.

Use a disposable needle and syringe only once. Follow any state or local laws about throwing away used needles and syringes. Use a puncture-proof "sharps" disposal container (ask your pharmacist where to get one and how to throw it away). Keep this container out of the reach of children and pets.

If you are being treated for gonorrhea, your doctor may also have you tested for syphilis, another sexually transmitted disease.

Your doctor may switch you from ampicillin injection to an oral form of this medicine. Use this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Ampicillin will not treat a viral infection such as the flu or a common cold.

If you use this medicine long-term, you may need frequent medical tests.

Ampicillin can cause unusual results with certain lab tests for glucose (sugar) in the urine. Tell any doctor who treats you that you are using this medicine.

Store unmixed ampicillin at room temperature away from moisture and heat.

After mixing your medicine, you will need to use it within a certain number of hours. This will depend on the diluent used, and whether the mixture is stored at room temperature or in a refrigerator. Carefully follow the mixing and storage instructions provided with your medicine. Ask your pharmacist if you have questions.

Detailed Ampicillin dosage information
Ampicillin (injection) Dosage information (more detail)

Before Taking

You should not use this medicine if you are allergic to ampicillin or to any other penicillin antibiotic, such as amoxicillin (Amoxil, Augmentin, Moxatag, and others), carbenicillin, dicloxacillin, or penicillin.

To make sure ampicillin is safe for you, tell your doctor if you have:

  • allergies to any foods or drugs;

  • an allergy to a cephalosporin antibiotic, such as cefdinir (Omnicef), cefprozil (Cefzil), cefuroxime (Ceftin), cephalexin (Keflex), and others; or

  • if you also take a medicine called allopurinol.

This medicine is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

Ampicillin can make birth control pills less effective. Ask your doctor about using non hormonal birth control (condom, diaphragm with spermicide) to prevent pregnancy.

Ampicillin can pass into breast milk and may harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

What happens if I miss a dose?

Use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while using Ampicillin (injection)?

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.

Ampicillin (injection) side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Ampicillin may cause serious side effects. Call your doctor at once if you have:

  • severe stomach pain, diarrhea that is watery or bloody;

  • fever, swollen glands, skin rash, joint pain, general ill feeling; or

  • pale skin, easy bruising or bleeding, unusual weakness.

Common side effects of ampicillin may include:

  • nausea, vomiting, stomach pain;

  • itching or rash;

  • swollen, black, or "hairy" tongue; or

  • vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See more: Ampicillin (injection) Side Effects

What other drugs will affect Ampicillin (injection)?

Other drugs may interact with ampicillin, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

More about Ampicillin (injection) (Ampicillin (injection) [ amp-i-sil-in ])

Dosage information
Ampicillin (injection) Side Effects
During pregnancy
Drug images
Side effects
Breastfeeding Warnings
Drug class: Aminopenicillins

Patient resources

Ampicillin Capsules
Ampicillin Injection Solution
Ampicillin Oral Suspension

Related treatment guides

Bacterial Infection
Bronchitis
Bacterial Endocarditis Prevention (Bacterial Endocarditis Prophylaxis)
Bacteremia
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