Ampicillin

Recommended dosage

Unless 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

Although 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.