Also known as: Azithromycin
Aztrin (Aztrin tablets and Aztrin for oral suspension) contain the active ingredient azithromycin, a macrolide antibacterial drug, for oral administration. Aztrin has the chemical name (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl) oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one. Aztrin is derived from erythromycin; however, it differs chemically from erythromycin in that a methyl-substituted nitrogen atom is incorporated into the lactone ring. Its molecular formula is C38H72N2O12, and its molecular weight is 749.00.
Aztrin, as the dihydrate, is a white crystalline powder with a molecular formula of C38H72N2O12∙2H2O and a molecular weight of 785.0.
Aztrin is supplied as tablets containing azithromycin dihydrate equivalent to either 250 mg or 500 mg azithromycin and the following inactive ingredients: 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.
Aztrin for oral suspension is supplied in bottles containing azithromycin dihydrate powder equivalent to 300 mg, 600 mg, 900 mg, or 1200 mg azithromycin per bottle and the following inactive ingredients: sucrose; sodium phosphate, tribasic, anhydrous; hydroxypropyl cellulose; xanthan gum; FD&C Red #40; and spray dried artificial cherry, creme de vanilla, and banana flavors. After constitution, each 5 mL of suspension contains 100 mg or 200 mg of azithromycin.
Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label. The dose and length of treatment with Aztrin may not be the same for every type of infection.
You may take most forms of Aztrin with or without food.
Take Aztrin extended release liquid (oral suspension) on an empty stomach, at least 1 hour before or 2 hours after a meal.
To use the oral suspension single dose packet: Open the packet and pour the medicine into 2 ounces of water. Stir this mixture and drink all of it right away. Do not save for later use. To make sure you get the entire dose, add a little more water to the same glass, swirl gently and drink right away.
Throw away any mixed Aztrin oral suspension that has not been used within 12 hours.
Shake the oral suspension well just before you measure a dose. Measure the liquid with a special dose-measuring spoon or medicine cup, not with a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
Take this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Azithromycin will not treat a viral infection such as the common cold or flu.
Store at room temperature away from moisture and heat. Throw away any unused liquid medicine after 10 days.
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Do not refrigerate or freeze the Zmax® extended-release oral suspension. After water has been added to the powder, use the dose within 12 hours and throw away any unused liquid after your dose.
You may store the Aztrin® oral liquid at room temperature or in the refrigerator. Do not freeze the bottle. Do not keep the oral liquid for more than 10 days. Throw away any unused liquid after all doses are completed.
Detailed Aztrin dosage information