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Omnipen, Principen, Totacillin, |Principen

Principen

Generic Name: ampicillin (am pi SIL in)
Brand Names: Omnipen, Principen, Totacillin

What is ampicillin?

Ampicillin is an antibiotic in the penicillin group of drugs. It fights bacteria in your body.

Ampicillin is used to treat many different types of infections caused by bacteria, such as ear infections, bladder infections, pneumonia, gonorrhea, and E. coli or salmonella infection.

Ampicillin may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about ampicillin?

Before using ampicillin, tell your doctor if you are allergic to cephalosporins such as Ceclor, Ceftin, Duricef, Keflex, and others, or if you have asthma, kidney disease, a bleeding or blood clotting disorder, mononucleosis (also called "mono"), or a history of any type of allergy.

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or has blood in it, call your doctor. Do not use any medicine to stop the diarrhea unless your doctor has told you to.

What should I discuss with my healthcare provider before taking ampicillin?

• amoxicillin (Amoxil, Amoxicot, Biomox, Dispermox, Trimox);

• carbenicillin (Geocillin);

• dicloxacillin (Dycill, Dynapen);

• oxacillin (Bactocill); or

• penicillin (Beepen-VK, Ledercillin VK, Pen-V, Pen-Vee K, Pfizerpen, V-Cillin K, Veetids, and others).

Before using ampicillin, tell your doctor if you are allergic to any drugs (especially cephalosporins such as Ceclor, Ceftin, Duricef, Keflex, and others), or if you have:

• asthma;

• kidney disease;

• a bleeding or blood clotting disorder;

• mononucleosis (also called "mono");

• a history of diarrhea caused by taking antibiotics; or

• a history of any type of allergy.

If you have any of these conditions, you may not be able to use ampicillin, or you may need a dosage adjustment or special tests during treatment.

How should I take ampicillin?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

To be sure this medication is helping your condition, your blood will need to be tested on a regular basis. Your kidney or liver function may also need to be tested. Do not miss any scheduled visits to your doctor.

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

This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using ampicillin.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Symptoms of an ampicillin overdose may include confusion, behavior changes, a severe skin rash, urinating less than usual, or seizure (black-out or convulsions).

What should I avoid while taking ampicillin?

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or has blood in it, call your doctor. Do not use any medicine to stop the diarrhea unless your doctor has told you to.

Ampicillin side effects

• fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;

• diarrhea that is watery or bloody;

• fever, chills, body aches, flu symptoms;

• easy bruising or bleeding, unusual weakness;

• urinating less than usual or not at all;

• agitation, confusion, unusual thoughts or behavior; or

• seizure (black-out or convulsions).

Less serious side effects are more likely to occur, such as:

• nausea, vomiting, stomach pain;

• vaginal itching or discharge;

• headache;

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

• thrush (white patches or inside your mouth or throat).

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect ampicillin?

Before taking ampicillin, tell your doctor if you are using any of the following drugs:

• allopurinol (Zyloprim);

• methotrexate (Rheumatrex, Trexall);

• probenecid (Benemid);

• a sulfa drug (such as Bactrim or Septra); or

• a tetracycline antibiotic such as demeclocycline (Declomycin), doxycycline (Adoxa, Doryx, Oracea, Vibramycin), minocycline (Dynacin, Minocin, Solodyn, Vectrin), or tetracycline (Brodspec, Panmycin, Sumycin, Tetracap).

If you are using any of these drugs, you may not be able to use ampicillin, or you may need dosage adjustments or special tests during treatment.

There may be other drugs not listed that can affect ampicillin. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

• Your pharmacist has information about ampicillin written for health professionals that you may read.

What does my medication look like?

Ampicillin is available with a prescription under the brand names Omnipen and Principen. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
• Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ("Multum") is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum"s drug information does not endorse drugs, diagnose patients or recommend therapy. Multum"s drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.