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Drug interactions with dextromethorphan-quinidine oral and diphenhydramine-phenylephrine oral

dextromethorphan-quinidine oral brand names and other generic formulations include:

Nuedexta Oral

All generic drug interactions for dextromethorphan-quinidine oral (lists will include brand and generic names):

diphenhydramine-phenylephrine oral brand names and other generic formulations include:

Ala-Hist LQ Oral, Aldex-CT Oral, Benadryl-D Allergy-Sinus Oral, Child Allergy & Sinus D Oral, Child Delsym Cough-Cold Night Oral, Child Delsym Nighttime C-C Oral, Child's Benadryl-D Allergy-Sin Oral, Childs Triacting Cold & Cough Oral, Complete Allergy & Sinus-D Oral, Delsym Night Time Cough & Cold Oral, DHM-PE Oral, Nighttime Cough-Cold Oral, Pediacare Allergy & Cold Oral, phenyleph/diphenhyd-phenyleph Oral, Sudafed PE Day & Night Oral, Triaminic Cold & Cough NT (PE) Oral, Wal-Dryl-D Allergy & Sinus Oral, Zoden PD Oral

All generic drug interactions for diphenhydramine-phenylephrine oral (lists will include brand and generic names):
Serious - Use AlternativePotential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed

dextromethorphan-quinidine oral and diphenhydramine-phenylephrine oral

dextromethorphan-quinidine oral , diphenhydramine-phenylephrine oral Mechanism: additive drug effects. Combination increases the risk of abnormal heart beats (prolonged QTc interval).

Patient Drug Interactions Source: RxList
© 2014 RxList, Inc.
Serious - Use AlternativeHigh likelihood serious or life-threatening interaction. Contraindicated unless benefits outweigh risks and no alternatives available. Never use combination.

dextromethorphan-quinidine oral and diphenhydramine-phenylephrine oral

dextromethorphan-quinidine oral , diphenhydramine-phenylephrine oral Mechanism: pharmacodynamic synergism. Risk of prolonged QTc interval.

Clinical Drug Interactions Source: Medscape from WebMD
© 1994-2014 WebMD, LLC.
Serious - Use AlternativeInteraction is unlikely, minor, or nonsignificant

diphenhydramine-phenylephrine oral and dextromethorphan-quinidine oral

diphenhydramine-phenylephrine oral will increase the level or effect of dextromethorphan-quinidine oral by altering drug metabolism.

Patient Drug Interactions Source: RxList
© 2014 RxList, Inc.
Serious - Use Alternative

diphenhydramine-phenylephrine oral and dextromethorphan-quinidine oral

Clinical Drug Interactions Source: Medscape from WebMD
© 1994-2014 WebMD, LLC.

Check for more interactions with the Drug Interaction Checker

Drug Interaction Categories

Contraindicated

Never use this combination of drugs because of high risk for dangerous interaction

Serious

Potential for serious interaction; regular monitoring by your doctor required or alternate medication may be needed

Significant

Potential for significant interaction (monitoring by your doctor is likely required)

Minor

Interaction is unlikely, minor, or nonsignificant

Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The information provided here is for informational purposes only. This tool may not cover all possible drug interactions. Please check with a physician if you have health questions or concerns. Although we attempt to provide accurate and up-to-date information, no guarantee is made to that effect.

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