If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.
Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. After water has been added to the powder, use the dose within 12 hours and throw away any unused liquid after your dose. 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.
It is very important that your doctor check the progress of you or your child at regular visits to make sure this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects. If you or your child's symptoms do not improve within a few days, or if they become worse, check with your doctor.
This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. Call your doctor right away if you or your child have a rash, itching, hives, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after you take this medicine. Serious skin reactions can occur with this medicine.
Check with your doctor right away if you or your child have blistering, peeling, or loosening of the skin, red skin lesions, severe acne or skin rash, sores or ulcers on the skin, or fever or chills while you are using this medicine.
Check with your doctor right away if you or your child have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, unusual tiredness or weakness, or yellow eyes or skin. These could be symptoms of a serious liver problem. Call your child's doctor right away if your child feels irritable or vomits after feeding.
These may be symptoms of a condition called infantile hypertrophic pyloric stenosis. Azithromycin may cause diarrhea, and in some cases it can be severe. It may occur 2 months or more after you stop using this medicine.
Do not take any medicine to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer. If you or your child have any questions about this or if mild diarrhea continues or gets worse, check with your doctor.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. Call your doctor for medical advice about side effects. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at Before taking azithromycin, tell your doctor or pharmacist if you are allergic to it; or to other antibiotics such as erythromycin, clarithromycin, telithromycin ; or if you have any other allergies.
This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of:. Azithromycin may cause a condition that affects the heart rhythm QT prolongation. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation.
Before using azithromycin, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions:. Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation.
Talk to your doctor about using azithromycin safely. Azithromycin may cause live bacterial vaccines such as typhoid vaccine to not work as well. Before having surgery, tell your doctor or dentist about all the products you use including prescription drugs, nonprescription drugs, and herbal products.
Older adults may be more sensitive to the side effects of this drug, especially QT prolongation see above. During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Many drugs besides azithromycin may affect the heart rhythm QT prolongation , including amiodarone, chloroquine, disopyramide, dofetilide, dronedarone, hydroxychloroquine, ibutilide, pimozide, procainamide, quinidine, sotalol, among others.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call May 31, What is the preferred antiseptic for cuts and scrapes? May 24, Why does Flonase taste bad? May 24, Should you take diabetes medications metformin and glipizide with food? You may have to take a different antibiotic. Certain antibiotics may cause side effects such as tooth discoloration in baby teeth, hearing loss, or kidney problems. Antibiotics, like most drugs, can interact with other drugs.
Some, like Zithromax or Z-Pak azithromycin , generally don't have many drug interactions. But other antibiotics, like fluoroquinolones and tetracyclines, don't work as well if you take them at the same time as calcium, iron, antacids like Tums or Maalox, or foods such as milk, cheese, or nuts. If you're taking medications or supplements that contain calcium or iron, or eating dairy foods or nuts, try to take your antibiotics a few hours before consuming any of these items.
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