Labetalol Oral

Labetalol Oral Interactions

Your healthcare professionals (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first.

This drug should not be used with the following medications because very serious interactions may occur:

• arbutamine

If you are currently using any of this medication, tell your doctor or pharmacist before starting labetalol.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of:

• inhalation anesthetics (e.g., halothane)
• certain antidepressants (e.g., tricyclics such as amitriptyline, desipramine)
• bronchodilators (e.g., beta agonists such as albuterol)
• drugs that affect the levels of certain natural chemicals-catecholamines (e.g., guanethidine, reserpine)
• certain calcium channel blockers (e.g., diltiazem, nifedipine, verapamil)
• cimetidine
• clonidine
• diabetes medications (e.g., glipizide, glyburide, insulin)
• epinephrine
• fenoldopam
• glutethimide
• methyldopa
• nitroglycerin

Check the labels on all your medicines (e.g., cough-and-cold products, diet aids, nonsteroidal anti-inflammatory drugs-NSAIDs for pain/fever reduction) because they may contain ingredients that could increase your blood pressure or cause a fast heartbeat (e.g., pseudoephedrine, phenylephrine, chlorpheniramine, diphenhydramine, clemastine, ibuprofen, naproxen). Ask your pharmacist about the safe use of those products.

This product can affect the results of certain lab tests (e.g., urinary catecholamines, amphetamine). Make sure laboratory personnel and all your doctors know you use this drug.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

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