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Dextromethorphan-Quinidine Oral Uses and How to Use


IMPORTANT NOTE: The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate or effective for you. Consult your healthcare professional before using this drug.

Table of Contents

Generic Name: DEXTROMETHORPHAN/QUINIDINE - ORAL
Pronounced: (DEX-troe-meth-OR-fan/KWIN-i-deen)

Dextromethorphan-Quinidine Oral Uses

This medication is used to treat a certain mental/mood disorder (pseudobulbar affect). This disorder may occur due to various conditions that affect the brain (such as stroke, amyotrophic lateral sclerosis-ALS, multiple sclerosis). This medication may help decrease sudden outbursts of uncontrollable/inappropriate laughing and/or crying.

This medication is a combination of 2 ingredients: dextromethorphan and quinidine. Dextromethorphan works in the brain, though it is not known exactly how it helps treat pseudobulbar affect. Quinidine is added to this medication to increase the effect of dextromethorphan.

How To Use Dextromethorphan-Quinidine Oral

Take this medication by mouth with or without food with a full glass of water (8 ounces/240 milliliters) as directed by your doctor, usually one capsule every 12 hours. Do not lie down for 10 minutes after taking this medication. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose (usually one capsule daily for 7 days) and gradually increase your dose. Follow your doctor's instructions carefully.

Avoid eating grapefruit or drinking grapefruit juice while using this medication unless your doctor or pharmacist says you may do so safely. Grapefruit can increase the chance of side effects with this medicine. Ask your doctor or pharmacist for more details.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.

Tell your doctor if your condition does not improve or if it worsens.


CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
Information last revised October 2011 Copyright(c) 2011 First DataBank, Inc.