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Brand Name: Zithromax
Generic Name: Azithromycin (ay zih throw mye sin)
Manufacturer: Pfizer Inc.
FDA Approval: January 2004
Dosage:
Oral
- Capsules (U.S. and Canada)
- Oral suspension (U.S. and Canada)
- Tablets (U.S. and Canada)
Parenteral
Clinical Brief
This drug is primarily available in three forms – as a capsule, tablet and syrup. The active ingredient is known as Azithromycin. It is an azalide which is a subclass of macrolide antibiotics. Although Azithromycin is derived from erythromycin, it chemically differs from erythromycin as a methyl-substituted nitrogen atom is integrated into the lactone ring.
For oral administration Zithromax is supplied as a film coated, modified capsular shaped tablet. Each tablet contains Azithromycin dihydrate equivalent to either 250 mg or 500 mg Azithromycin. The inactive ingredients include - : dibasic calcium phosphate anhydrous, pregelatinized starch, sodium croscarmellose, magnesium stearate, sodium lauryl sulfate, hypromellose, lactose, titanium dioxide, triacetin and D&C Red #30 aluminum lake.
Zithromax 250 mg tablets are supplied as pink modified capsular shaped, engraved, film-coated tablets containing azithromycin dihydrate equivalent to 250 mg of azithromycin. Zithromax 250 mg tablets are engraved with “PFIZER” on one side and “306” on the other. These are packaged in bottles and blister cards of 6 tablets.
For oral suspension Zithromax is supplied in a bottle which contains Azithromycin dehydrate powder equivalent to 300 mg, 600 mg, 900 mg, or 1200 mg Azithromycin. The inactive ingredients include - sucrose; sodium phosphate, tribasic, anhydrous; hydroxypropyl, cellulose; xanthan gum; FD&C Red #40; and spray dried artificial cherry, creme de vanilla and banana flavors. Each 5ml of Zithromax suspension contains 100 mg or 200 mg of Azithromycin after constitution.
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