Ampicillin is an antibiotic. It is used to treat bacterial infections of the ear, nose, throat, lungs, skin, stomach, blood stream, bladder and genitals.
This medicine may be used to treat other conditions as decided by your doctor.
Ampicillin injection is to be given intravenously (into the vein) or intramuscularly (into the muscle).
Your doctor or nurse will administer it for you.
The dose of this medicine will be decided by your doctor. Your doctor will advise you on the treatment timeframe depending on the type and severity of your infection.
Ensure that you keep all appointments with your doctor so that you do not miss any doses. Your doctor also needs to regularly monitor your response to Ampicillin.
If you miss an appointment or miss an injection, alert your doctor or nurse. A replacement appointment or injection should be given as soon as possible.
Do not use Ampicillin if you ever had an allergic reaction (e.g. rashes, breathlessness, swollen eyes) to penicillin antibiotics (e.g. amoxicillin, cloxacillin, penicillin V, sultamicillin) and cephalosporin antibiotics (e.g. cefaclor, cefalexin, cefuroxime).
Inform your doctor if you have the following conditions:
- kidney disease
- glandular fever (a type of viral infection)
- infectious mononucleosis (a viral infection also known as “mono” or “kissing disease”)
- lymphatic leukaemia (a type of cancer of the blood and bone marrow)
- HIV infection
Let your doctor know if you are pregnant or breastfeeding.
If you are diabetic, this medicine may interfere with results of urine tests for sugars. Discuss with your doctor how you should monitor your urine tests while taking this medicine.
Ampicillin may cause any of the following side effects: diarrhoea, nausea and vomiting.
If you have diarrhoea, drink lots of water to replace the fluids lost. However, if you have severe diarrhoea or diarrhoea with severe stomach cramps or bloody stools, alert your doctor immediately.
Some side effects may need immediate medical help. Alert your doctor quickly if you experience any of the following:
- rashes, breathlessness, swelling of the face, eyes or mouth
- peeling of the skin or blistering of the lips, mouth or eyes accompanied by fever
- frequent and persistent sore throat with fever
- unusual bleeding or bruising
- seizures
Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Inform your doctor and pharmacist if you are taking or using any of these medicines:
- medicines for gout e.g. probenecid, allopurinol
- other antibiotics e.g. tetracyclines, erythromycin, chloramphenicol
- birth control pills
This list does not include all medicines that may interact with Ampicillin.
Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
Avoid alcohol.
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.
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