DRUG INTERACTIONS: Drug interactions may change how medications work or increase your child's risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products your child uses (including prescription/nonprescription drugs and herbal products) and share it with your child's doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without the doctor's approval.Some products that may interact with this drug include: clindamycin, digoxin, methenamine, methotrexate, tretinoin.Many drugs besides erythromycin may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, cisapride, pimozide, procainamide, propafenone, quinidine, sotalol, among others.Other medications can affect the removal of erythromycin from your child's body, which may affect how erythromycin works. Examples include azole antifungals (such as itraconazole, ketoconazole), certain calcium channel blockers (such as diltiazem, verapamil), certain anti-seizure medications (such as carbamazepine, phenytoin), quinupristin-dalfopristin, among others.Erythromycin can slow down the removal of other drugs from your child's body, which may affect how they work. Examples of affected drugs include bromocriptine, colchicine, certain benzodiazepines (such as midazolam, triazolam), eletriptan, ergot alkaloids (such as ergotamine, dihydroergotamine), certain drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), certain "statin" drugs (such as lovastatin, simvastatin), vinblastine, 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 the doctor or pharmacist if your child should use additional reliable birth control methods while using this antibiotic.This medication may interfere with certain laboratory tests (urine tests), possibly causing false test results. Make sure laboratory personnel and all doctors know your child is using 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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