DRUG INTERACTIONS: 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. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: colchicine, digoxin, ergot alkaloids (such as dihydroergotamine, ergotamine), methotrexate, probenecid, rifamycins (such as rifabutin), live bacterial vaccines.Many drugs besides clarithromycin may affect the heart rhythm (QT prolongation). Examples include amiodarone, cisapride, disopyramide, dofetilide, dronedarone, ibutilide, pimozide, procainamide, propafenone, quinidine, sotalol, among others. Therefore, before using this product, report all medications you are currently using to your doctor or pharmacist.Some products need stomach acid so that the body can absorb them properly (such as atazanavir, erlotinib, nelfinavir, rilpivirine, certain azole antifungals including itraconazole/ketoconazole/posaconazole). Lansoprazole decreases stomach acid, so it may change how well these other products work. Before using lansoprazole, consult your doctor or pharmacist about the other medications you take and for advice on how to reduce or avoid these types of interactions.Clarithromycin can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include some benzodiazepines (such as alprazolam, triazolam), carbamazepine, eletriptan, eplerenone, some drugs used to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), fentanyl, fesoterodine, ixabepilone, lurasidone, maraviroc, some drugs for organ transplant (such as cyclosporine, tacrolimus, sirolimus), ranolazine, repaglinide, silodosin, some "statin" drugs (such as atorvastatin, lovastatin, simvastatin), temsirolimus, theophylline, tolterodine, among others.Although most antibiotics probably do not affect hormonal birth control such as pills, patch, or ring, some antibiotics may decrease their effectiveness. This could cause pregnancy. Examples include rifamycins such as rifampin or rifabutin. Be sure to ask your doctor or pharmacist if you should use additional reliable birth control methods while using this antibiotic.Lansoprazole is very similar to dexlansoprazole. Do not use medications containing dexlansoprazole while using lansoprazole.This medication may interfere with certain laboratory tests (including urine glucose test), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.
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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