Zithromax and Azithromycin: U.S. Product and Availability Questions

Zithromax is Pfizer's brand name for azithromycin, a macrolide antibacterial medicine. Generic azithromycin products are separately labeled prescription drugs. A reader searching for "generic Zithromax" is usually comparing products that contain the same active ingredient but are marketed under different labels and applications.

Current U.S. Zithromax record

The current DailyMed label, updated July 24, 2026, lists Zithromax under Pfizer Laboratories Div Pfizer Inc. as a U.S. prescription drug marketed under an NDA. The product line includes 250 mg and 500 mg film-coated tablets and powder for oral suspension.

The 500 mg strength in this page's historical search intent is therefore a recognized Zithromax tablet strength. That fact identifies a marketed product; it does not determine which strength, formulation, or treatment course is appropriate for a particular infection.

Zithromax versus generic azithromycin

Brand-name Zithromax and generic azithromycin should be compared by active ingredient, strength, dosage form, labeler or manufacturer, NDC, prescription status, and current availability. Generic products may have different package configurations and pricing even when they contain the same active ingredient and strength.

If a prescription permits substitution, the dispensing pharmacy can identify the specific azithromycin product it can provide. Publication of this page does not mean King Pharmacy has Zithromax or a particular generic azithromycin product in stock.

Price and availability questions

Cost can vary by brand versus generic selection, strength, dosage form, package quantity, insurance coverage, and pharmacy pricing. Historical "per pill" prices should not be treated as current retail prices or as a King Pharmacy offer.

For a useful current comparison, verify whether the prescription calls for the Zithromax brand or permits generic azithromycin, which strength and dosage form are prescribed, and whether that exact product is currently available.

Prescription and antibiotic-use context

Azithromycin is a prescription antibacterial drug for specific bacterial infections covered by its labeling. Antibiotics should not be selected simply because a product is available or because a previous illness had similar symptoms. The prescriber determines whether an antibacterial medicine is appropriate for the diagnosed condition.

Azithromycin also has clinically important warnings and interaction considerations, including potential cardiac rhythm effects in susceptible patients. Use the current prescription label and ask the prescriber or pharmacist about patient-specific safety questions. This page does not provide an individualized antibiotic regimen.