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Amoxicill-Clarithro-Lansopraz Oral

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Amoxicill-Clarithro-Lansopraz Oral Precautions

Before taking this product, tell your doctor or pharmacist if you are allergic to lansoprazole, amoxicillin, or clarithromycin; or to penicillins (such as ampicillin), cephalosporins (such as cephalexin), or macrolide antibiotics (such as erythromycin); or if you have any other allergies.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

  • liver disease
  • kidney disease
  • a certain type of muscle disease (myasthenia gravis)
  • a certain type of viral infection (infectious mononucleosis)


Some symptoms may actually be signs of a more serious condition. Tell your doctor immediately if you have:

  • heartburn combined with lightheadedness/sweating/dizziness
  • chest pain or shoulder/jaw pain (especially with trouble breathing)
  • pain spreading to arms/neck/shoulders
  • unexplained weight loss


Clarithromycin may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that require immediate medical attention. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may affect the heart rhythm (see also Drug Interactions section). Before using this product, tell your doctor or pharmacist if you have any of the following conditions:

  • certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG)
  • family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death)


Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using this product safely.

During pregnancy, this product should be used only when clearly needed. Discuss the risks and benefits with your doctor.

Amoxicillin passes into breast milk. It is unknown if lansoprazole or clarithromycin pass into breast milk. Because of the possible risk to the infant, breast-feeding while using this product is not recommended. Consult your doctor before breast-feeding.

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