Why is Zithromax prescribed?

Zithromax is an antibiotic used to treat certain infections caused by bacteria, such as pneumonia; venereal disease (VD); and ear, lung, skin, and throat infections. In acquired immunodeficiency syndrome (AIDS) patients, Azithromycin is used to prevent pneumonia, called disseminated Mycobacterium avium complex (MAC) infection. Antibiotics will not work for colds, flu, or other viral infections. Azithromycin is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How should Zithromax be used?

Zithromax comes as a capsule, tablet, and liquid to take by mouth. It is usually taken once a day for 2-5 days. For VD, it is taken as a single dose. To prevent Mycobacterium avium complex, it is given once weekly. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Azithromycin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Shake the liquid well before each use to mix the medication evenly. The capsules and tablets should be taken with a full glass of water.

Continue to take Zithromax even if you feel well. Do not stop taking Zithromax without talking to your doctor.

What special precautions should I follow?

Before taking Zithromax,

• tell your doctor and pharmacist if you are allergic to Zithromax, clarithromycin (Biaxin), dirithromycin (Dynabac), erythromycin, or any other drugs.
• tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially other antibiotics, anticoagulants ('blood thinners') such as warfarin (Coumadin), astemizole (Hismanal), carbamazepine (Tegretol), cisapride (Propulsid), clozapine (clozaril), cyclosporine (Neoral, Sandimmune), digoxin (Lanoxin), disopyramide (Norpace), ergotamine, felodipine (Plendil), lovastatin (Mevacor), phenytoin (Dilantin), pimozide (Orap), terfenadine (Seldane), theophylline (Theo-Dur), triazolam (Halcion), and vitamins.
• tell your doctor if you have or have ever had liver disease, irregular heart beat, yellowing of the skin or eyes, colitis, or stomach problems.
• tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking Azithromycin, call your doctor.
• if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking Zithromax.
• if you take antacids (Mylanta, Maalox), take them 2 hours after Zithromax.
• plan to avoid unnecessary or prolonged exposure to sunlight and to wear protective clothing, sunglasses, and sunscreen. Azithromycin may make your skin sensitive to sunlight

What should I do if I forget a dose?

Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

What side effects can Zithromax cause?

Although side effects from Zithromax are not common, they can occur. Tell your doctor if any of these symptoms are severe or do not go away:

• upset stomach
• diarrhea
• vomiting
• stomach cramps
• mild skin rash
• stomach pain

If you experience any of the following symptoms, call your doctor immediately:

• severe skin rash
• itching
• hives
• difficulty breathing or swallowing
• wheezing
• yellowing of the skin or eyes
• dark urine
• pale stools
• unusual tiredness
• vaginal infection

What storage conditions are needed for Zithromax?

Keep Azithromycin in the container it came in, tightly closed, and out of reach of children. Store the capsules and tablets at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Keep liquid medicine in the refrigerator, tightly closed, and throw away any unused Azithromycin after 10 days. Do not freeze. Talk to your pharmacist about the proper disposal of your medication.

What other information should I know?

Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to Zithromax. Do not let anyone else take your Azithromycin. Your prescription is probably not refillable. If you still have symptoms of infection after you finish the Azithromycin, call your doctor.