What is the most important information I should know about azithromycin?
You should not use this medication if you have ever had jaundice or liver problems caused by taking azithromycin.
What is azithromycin?
Azithromycin is an antibiotic that fights bacteria.
Azithromycin is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases.
Azithromycin may also be used for purposes not listed in this medication guide.
What should I discuss with my healthcare provider before taking azithromycin?
You should not use azithromycin if you are allergic to it, or if:
- you have ever had jaundice or liver problems caused by taking azithromycin; or
- you are allergic to similar drugs such as clarithromycin, erythromycin, or telithromycin.
To make sure azithromycin is safe for you, tell your doctor if you have ever had:
- liver disease;
- kidney disease;
- myasthenia gravis;
- a heart rhythm disorder;
- low levels of potassium in your blood; or
- long QT syndrome (in you or a family member).
This medicine is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
It is not known whether azithromycin passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
Do not give this medicine to a child younger than 6 months old.
How should I take azithromycin?
Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. The dose and length of treatment with azithromycin may not be the same for every type of infection.
You may take most forms of azithromycin with or without food.
Take Zmax 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 Zmax oral suspension that has not been used within 12 hours.
Shake the oral suspension (liquid) well just before you measure a dose. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.
Use 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 flu or a common cold.
Store at room temperature away from moisture and heat. Throw away any unused liquid medicine after 10 days.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking azithromycin?
Do not take antacids that contain aluminum or magnesium within 2 hours before or after you take azithromycin. This includes Acid Gone, Aldroxicon, Alternagel, Di-Gel, Gaviscon, Gelusil, Genaton, Maalox, Maldroxal, Milk of Magnesia, Mintox, Mylagen, Mylanta, Pepcid Complete, Rolaids, Rulox, and others. These antacids can make azithromycin less effective when taken at the same time.
Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.
Avoid exposure to sunlight or tanning beds. Azithromycin can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.
What are the possible side effects of azithromycin?
Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning in your eyes, skin pain, red or purple skin rash that spreads and causes blistering and peeling).
Seek medical treatment if you have a serious drug reaction that can affect many parts of your body. Symptoms may include: skin rash, fever, swollen glands, flu-like symptoms, muscle aches, severe weakness, unusual bruising, or yellowing of your skin or eyes. This reaction may occur several weeks after you began using azithromycin.
Call your doctor at once if you have:
- severe stomach pain, diarrhea that is watery or bloody;
- fast or pounding heartbeats, fluttering in your chest, shortness of breath, and sudden dizziness (like you might pass out); or
-
liver problems --nausea, upper stomach pain, itching, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).
Call your doctor right away if a baby taking azithromycin becomes irritable or vomits while eating or nursing.
Older adults may be more likely to have side effects on heart rhythm, including a life-threatening fast heart rate.
Common side effects may include:
- diarrhea;
- nausea, vomiting, stomach pain; or
- headache.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect azithromycin?
Tell your doctor about all your current medicines and any you start or stop using, especially:
- nelfinavir; or
-
a blood thinner --warfarin, Coumadin, Jantoven.
This list is not complete. Other drugs may interact with azithromycin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
Where can I get more information?
Your pharmacist can provide more information about azithromycin.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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