Ampicillin is used for the treatment of bladder infections, pneumonia, gonorrhea, meningitis and other infections of the stomach.

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Ampicillin belongs to the penicillin group of antibiotics. It works by eliminating the bacterial cell wall.


& Dosage

Please ask for precise dosage instructions to your healthcare provider.

Ampicillin is an antibiotic medication that needs to be taken for a stipulated period of time for it to be effective. Do not discontinue dosage suddenly without speaking to your doctor. Also, do not take the medication for a prolonged time period.

Try to take the medication at the same time everyday to avoid missing a dose. If you have missed a dose and it is almost time for the next dose, then skip the missed one and continue with the regular dosage. Alternatively, if you remember immediately, then you may take the missed dose. Never double up to compensate for a missed dose.


Store Ampicillin at room temperature in a cool and dark place. Keep away from children and pets.

Speak about your medical history to your healthcare provider.
Mention complete and accurate details about existing medical conditions, known allergies to food or drugs, dietary supplements, vitamins, minerals, herbal supplements or OTC medications that you may be using.
Do not use Ampicillin if:
You are allergic to it or other similar antibiotics
Maintain caution while using Ampicillin if:
You have a history of allergies, asthma, hay fever, or hives
You have had a severe allergic reaction (eg, severe rash, hives, breathing difficulties, dizziness) to
You have kidney problems
You are allergic to cephalosporin antibiotics.
Maintain caution if you use the following drugs:
Anticoagulants (eg, warfarin)
Chloramphenicol, macrolide antibiotics (eg, erythromycin), sulfonamides (eg, sulfamethoxazole), or tetracycline antibiotics (eg, doxycycline)
Live oral typhoid vaccine or hormonal birth control (eg, birth control pills)
Please be informed:
Ampicillin may cause dizziness, blurred vision or drowsiness during early stages of therapy. If you experience any such side effects, avoid any tasks that require you to be mentally alert. For example, driving, swimming, handling heavy machinery etc. These effects may be enhanced in people who use alcoholic beverages.
Some patients experience mild diarrhea while using antibiotics. This is common and may not necessarily need medical treatment. However, symptoms like bloody or tarry stools should not be ignored.
Infrequent or unmonitored use of Ampicillin may cause a severe relapse of the disease which may be difficult to treat. So, always follow the instructions of your health care provider and never self medicate.
Ampicillin may reduce the effectiveness of hormonal birth control methods. It is recommended that you use multiple forms of birth control or use a barrier method like a condom.
If you are pregnant, then you must contact your doctor to speak about using Ampicillin. There may be risks or benefits that you need to be aware of. Ampicillin is found in breast milk. Do not breast feed while using Ampicillin.

Side Effects
Mild side effects are commonly experienced while using Ampicillin. They do not need medical treatment and usually subside on their own. Some examples are Diarrhea; nausea; vomiting, hairy tongue, vaginal discharge or itching.
If these side effects become bothersome or do not fade away after a while, then seek medical assistance.