ZITHROMAX INJECTION Rx

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ZITHROMAX INJECTION

Bacterial infections
Only 4 drugs may be compared at once

Generic Name and Formulations:

Azithromycin 500mg/vial; for IV infusion after reconstitution and dilution.

Company:

Pfizer Inc.

Select therapeutic use:

Indications for ZITHROMAX INJECTION:

Susceptible infections including community-acquired pneumonia, pelvic inflammatory disease (PID).

Adult:

Give by IV infusion 1mg/mL over 3hrs or 2mg/mL over 1hr. ≥16yrs: Pneumonia: 500mg once daily for at least 2 days, switch to 500mg orally once daily, for a total of 7–10 days combined therapy. PID: 500mg once daily for 1–2 days, switch to 250mg orally once daily for a total of 7 days combined therapy.

Children:

<16yrs: not established.

Contraindications:

Ketolide allergy. History of cholestatic jaundice/hepatic dysfunction associated with prior use.

Warnings/Precautions:

Pneumonia: oral treatment is for mild, community-acquired cases suitable for outpatient therapy only. Discontinue if signs/symptoms of hepatitis occur. Known QT prolongation, proarrhythmic conditions, clinically significant bradycardia: avoid. Allergic symptoms may recur after initial successful symptomatic treatment. Myasthenia gravis. Hepatic or renal impairment. Elderly. Pregnancy (Cat.B). Nursing mothers.

Interactions:

Avoid concomitant aluminum- or magnesium-containing antacids. Monitor with digoxin, phenytoin, warfarin. Monitor for azithromycin toxicity (eg, liver dysfunction, ototoxicity) with nelfinavir. Concomitant Class 1A (eg, quinidine, procainamide), or Class III (eg, dofetilide, amiodarone, sotalol) antiarrhythmics, or others known to prolong the QT interval: avoid.

See Also:

ZITHROMAX

ZITHROMAX ORAL SUSP

ZITHROMAX PACKETS

Pharmacological Class:

Macrolide (azalide).

Adverse Reactions:

Diarrhea, nausea, abdominal pain, vomiting, rash; hepatotoxicity, hypersensitivity reactions (eg, angioedema, AGEP, Stevens-Johnson syndrome, toxic epidermal necrolysis, DRESS; discontinue if occurs), torsade de pointes (esp. elderly), C. difficile associated diarrhea.

Elimination:

Biliary (primarily), renal.

Generic Availability:

YES

How Supplied:

Tabs—30; Z-Pak (6 x 250mg tabs)—3; Tri-Pak (3 x 500mg tabs)—3; Susp 100mg/5mL—15mL; 200mg/5mL—15mL, 22.5mL, 30mL; Single Dose Packets—3, 10; Inj—10