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UNASYN
Bacterial infections
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Drug Name:

UNASYN Rx

Generic Name and Formulations:
Ampicillin sodium 1g, sulbactam sodium 0.5g (1.5g vial); or ampicillin sodium 2g, sulbactam sodium 1g (3g vial); IM or IV inj; sodium content 5mEq/g of ampicillin.

Company:
Pfizer Inc.

Therapeutic Use:

Indications for UNASYN:

Susceptible skin and skin structure, intraabdominal, gynecologic infections.

Adult:

Dose is given as ampicillin + sulbactam. Normal renal function (CrCl ≥30mL/min): 1.5–3g IM or IV every 6hrs; CrCl 15–29mL/min: 1.5–3g every 12hrs; CrCl 5–14mL/min: 1.5–3g every 24hrs.

Children:

Intraabdominal infections: not recommended. Dose is given as ampicillin + sulbactam. <1yr: not recommended. ≥1yr (<40kg): 300mg/kg per day IV in equally divided doses every 6hrs; usual max 14 days. ≥40kg: as adult.

Contraindications:

Previous history of cholestatic jaundice/hepatic dysfunction. Penicillin, cephalosporin, or other β-lactam allergy.

Warnings/Precautions:

Mononucleosis: not recommended. Discontinue if superinfection occurs or skin lesions progress. Hepatic impairment (monitor). Pregnancy (Cat.B). Nursing mothers.

Interactions:

Potentiated by probenecid. Increased incidence of rash with allopurinol. May cause false (+) Clinitest, Benedict's or Fehling's soln.

Pharmacological Class:

Broad-spectrum penicillin + β-lactamase inhibitor.

Adverse Reactions:

Inj site reactions, diarrhea, rash, blood dyscrasias, anaphylaxis, elevated liver enzymes; C. difficile-associated diarrhea (evaluate if occurs), severe skin reactions (eg, SJS, TEN, dermatitis exfoliative, erythema multiforme, AGEP).

Generic Availability:

YES

How Supplied:

Vials (1.5g, 3g)—1

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