Medications and Drugs
Brand Names: Biaxin, Biaxin XL, Biaxin XL-Pak
Generic Name: clarithromycin (Pronunciation: kla RITH roe MYE sin)
What is clarithromycin (Biaxin, Biaxin XL, Biaxin XL-Pak)?
Clarithromycin is a macrolide antibiotic. Clarithromycin fights bacteria in your body.
Clarithromycin is used to treat many different types of bacterial infections affecting the skin and respiratory system. Clarithromycin is also used together with other medicines to treat stomach ulcers caused by Helicobacter pylori.
Clarithromycin may also be used for purposes not listed in this medication guide.
Biaxin 250 mg
oval, yellow, imprinted with A KT
Biaxin 500 mg
oval, yellow, imprinted with a KL
Biaxin XL 500 mg
oval, yellow, imprinted with aKJ
Clarithromycin 250 mg-ROX
round, white, imprinted with 54 271
Clarithromycin 250 mg-TEV
oval, yellow, imprinted with 7157, 93
Clarithromycin 500 mg ER-TEV
oval, yellow, imprinted with 93, 7244
Clarithromycin 500 mg-TEV
oval, yellow, imprinted with 7158, 93
Clarithromycin ER 500 mg-AND
oval, orange, imprinted with Logo 777
What are the possible side effects of clarithromycin (Biaxin, Biaxin XL, Biaxin XL-Pak)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
Clarithromycin may also cause severe liver symptoms. Stop taking clarithromycin and call your doctor at once if you have any of these liver symptoms:
Less serious side effects may include:
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 is the most important information I should know about clarithromycin (Biaxin, Biaxin XL, Biaxin XL-Pak)?
You should not use this medication if you are allergic to clarithromycin, or to similar medicines such as azithromycin (Zithromax), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), or telithromycin (Ketek).
You should not use this medication if you have a life-threatening heart rhythm disorder, a history of Long QT syndrome, if you have ever had jaundice or liver problems caused by taking clarithromycin, or if you have liver or kidney disease and are also taking colchicine (Colcrys).
Do not use clarithromycin if you are also using any of the drugs listed below. They can interact with clarithromycin and cause serious or life-threatening side effects:
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. Clarithromycin will not treat a viral infection such as the common cold or flu.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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