AZITHROMYCINis a macrolide antibiotic that interferes with the growth of bacterial cells. It is used to treat bacterial infections in many different parts of the body. Azithromycin also treats sexually transmitted vaginal or urinary tract infections caused by chlamydia. It will not work for colds, flu, or other virus infections.

They need to know if you have any of these conditions:;

• kidney disease; liver disease
• pneumonia
• stomach problems (especially colitis)
• other chronic illness; an unusual or allergic reaction to azithromycin
• other macrolide antibiotics (such as erythromycin), foods, dyes, or preservatives
• pregnant or trying to get pregnant
• breast-feeding

Take azithromycin by mouth. Swallow tablets whole with a full glass of water. Azithromycin tablets can be taken with or without food. Take your doses at regular intervals. Do not take your medicine more often than directed. Finish the full course prescribed by your prescriber or health care professional even if you think your condition is better. Do not stop taking except on your prescriber''s advice.

Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses. There should be an interval of at least 12 hours between doses.

• antacids
• astemizole; digoxin
• dihydroergotamine
• ergotamine
• magnesium salts
• terfenadine
• triazolam
• warfarin

Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.

Side effects that you should report to your prescriber or health care professional as soon as possible:

• dark yellow or brown urine;
• difficulty breathing; severe or watery diarrhea;
• skin rash, itching;
• irregular heartbeat, palpitations, or chest pain;
• vomiting;
• yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):

• diarrhea;
• dizziness, drowsiness;
• hearing loss;
• headache;
• increased sensitivity to the sun;
• nausea;
• stomach pain or cramps;
• tiredness;
• vaginal irritation, itching or discharge

This list may not describe all possible side effects.

Tell your prescriber or health care professional if your symptoms do not improve in 2 to 3 days. Contact your prescriber or health care professional as soon as you can if you get an allergic reaction to azithromycin, such as rash, itching, difficulty swallowing, or swelling of the face, lips or tongue.

Keep out of the sun, or wear protective clothing outdoors and use a sunscreen. Do not use sun lamps or sun tanning beds or booths.

If you get severe or watery diarrhea, do not treat yourself. Call your prescriber or health care professional for advice.

Antacids can stop azithromycin from working. If you get an upset stomach and want to take an antacid, make sure there is an interval of at least 2 hours since you last took azithromycin, or 4 hours before your next dose.

If you are going to have surgery, tell your prescriber or health care professional that you are taking azithromycin.

Keep out of the reach of children in a container that small children cannot open.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.