Ampicillin
Overview
- About Ampicillin
Ampicillin appears in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to stop breastfeeding until your treatment is finished.
Recommended dosage for Ampicillin
Return to topUnless you are being treated for gonorrhea, your doctor will have you continue to take ampicillin for 2 to 3 days after your symptoms have disappeared. Dosages are for capsules and oral suspension.
ADULTS
Infections of the Genital, Urinary, or Gastrointestinal Tracts
The usual dose is 500 milligrams, taken every 6 hours.
Gonorrhea
The usual dose is 3.5 grams in a single oral dose along with 1 gram of probenecid
Respiratory Tract Infections
The usual dose is 250 milligrams, taken every 6 hours.
CHILDREN
Children weighing over 44 pounds should follow the adult dose schedule.
Children weighing 44 pounds or less should have their dosage determined by their weight.
Infections of the Genital, Urinary, or Gastrointestinal Tracts
The usual dose is 100 milligrams for each 2.2 pounds of body weight daily, divided into 4 doses for the capsules, and 3 to 4 doses for the suspension.
Respiratory Tract Infections
The usual dose is 50 milligrams for each 2.2 pounds of body weight daily, divided into 3 to 4 doses.
Overdosage
Return to topAlthough no specific symptoms have been reported, any medication taken in excess can have serious consequences. If you suspect an overdose of ampicillin, seek medical attention immediately.






