Ampicillin Oral: Uses, Side Effects, Interactions, Pictures, Warnings and Dosage

Ampicillin is used to treat various bacterial infections. It is a penicillin antibiotic. It works by stopping the growth of bacteria. This antibiotic only treats bacterial infections. It is not suitable for viral infections (eg colds, flu). Using any antibiotic when not needed can result in it not working against future infections.

  Take this medicine by mouth as directed by your doctor, usually 4 times a day (every 6 hours). Take ampicillin on an empty stomach (1 hour before or 2 hours after a meal) with a full glass of water. Drink plenty of fluids while using this medicine, unless your doctor has told you otherwise.

  For best results, take this antibiotic at regular intervals. To help you remember, take this medicine at the same time each day.

  Continue taking this medicine until the full prescribed amount has been filled, even if the symptoms disappear after a few days. Stopping the drug too early can allow the bacteria to continue growing, causing a recurrence of the infection.

  Nausea, vomiting, diarrhea, or mouth/tongue ulcers may occur. If any of these effects persist or worsen, tell your doctor or pharmacist immediately.

  Remember that this medication was prescribed because your doctor thought the benefit to you outweighed the risk of side effects. Many people who use this drug do not have serious side effects.

  Tell your doctor right away if you have any serious side effects, including: nausea or vomiting that doesn’t stop, sore throat or fever that doesn’t go away, dark urine, stomach/tummy pain, yellowing of the eyes, or skin, easy bruising. or bleed.


  In rare cases, this drug can cause a serious intestinal illness caused by the bacterium Clostridium difficile. This can happen during treatment or weeks or months after treatment is stopped. Tell your doctor right away if you get: persistent diarrhea, abdominal pain or abdominal pain/cramps, blood/mucus in the stool.

  Do not take antidiarrheal drugs or opioids if you have these symptoms, as they may make your symptoms worse.

  Long-term or repeated use of this medication may cause oral thrush or a new vaginal yeast infection (a fungal infection of the mouth or vagina). Call your doctor if you notice white patches in your mouth, changes in vaginal discharge, or other new symptoms.

  A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, difficulty breathing.

  Ampicillin usually causes a mild rash, which is usually not serious. However, you may not be able to tell it apart from a rare rash, which could be a sign of a severe allergic reaction. Seek medical attention immediately if a rash develops.

  This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

  Before taking ampicillin, tell your doctor or pharmacist if you are allergic to it, to penicillin or cephalosporin antibiotics, or if you have any other allergies. This product may contain inactive ingredients that may cause allergic reactions or other problems. Ask your pharmacist for more details.

  Before using this medicine, tell your doctor or pharmacist your medical history, especially: kidney disease, a certain type of viral infection (infectious mononucleosis).

  Ampicillin can make live bacterial vaccines (such as the typhoid vaccine) not work. Before having any vaccinations/vaccinations, tell your healthcare provider that you are using ampicillin.

  During pregnancy, this medicine should only be used if absolutely necessary. Discuss the risks and benefits with your doctor.

  Drug interactions may change how a drug works or increase the risk of serious side effects. This document does not contain all possible drug interactions. Make a list of all the products you use (including prescription/OTC and herbal products) and share them with your doctor and pharmacist. Do not start, stop, or change the dosage of any medication without your doctor’s permission.

  Ampicillin can cause false positive results in a urine test for diabetes (a type of copper sulfate). This medicine may also affect the results of some lab tests. Make sure the lab staff and your doctor know you are taking this drug.

  This medicine is only prescribed for your current condition. Do not use it later for another infection unless your doctor tells you to.

  If you are using this medicine for a long time, laboratory and/or medical tests (eg kidney/liver function, complete blood count) should be done while you are taking this medicine. All medical and laboratory appointments are reserved. Contact your doctor for more information.

  If you miss a dose, use it as soon as you remember. If it’s time for your next dose, skip the missed dose. Use the next dose regularly. Don’t double your dose to catch up.

  Store in a dry place, protected from light, at room temperature. Do not store in the bathroom. Keep all medicines out of the reach of children and pets.

  Do not flush this medicine down the toilet or down the drain unless directed to do so. If this product has expired or is no longer needed, please dispose of it properly. Check with your pharmacist or local waste disposal company.

Post time: Mar-15-2023