Bacterial infections:

Indications for: Ampicillin Suspension

Ampicillin-sensitive infections.

Adult Dosage:

250–500mg 4 times daily. Continue therapy for 3 days after symptoms improve. N. gonorrhoeae: 3.5g with 1g probenecid once.

Children Dosage:

<20kg: 50–100mg/kg per day in 3–4 divided doses. ≥20kg: as adult. Continue therapy for 3 days after symptoms improve.

Ampicillin Suspension Warnings/Precautions:

Cephalosporin, imipenem, other allergy or mononucleosis: not recommended. Monitor blood, renal, and liver function in long-term use. Pregnancy (Cat.B). Nursing mothers.

Ampicillin Suspension Classification:

Broad-spectrum penicillin.

Ampicillin Suspension Interactions:

May cause false (+) glucose test with Clinitest, Benedict's or Fehling's soln. Potentiated by probenecid. May increase risk of rash with allopurinol.

Adverse Reactions:

Anaphylaxis, urticaria, GI upset, blood dyscrasias.


Formerly known under the brand names Principen, Totacillin, Pfizerpen-A, Penbritin, Omnipen, Amcill (caps, susp); Polycillin-N, Totacillin-N, Penbritin-S, Omnipen-N (inj).

How Supplied:

Contact supplier.