Drug interactions with dextromethorphan-quinidine oral and promethazine rect

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):

promethazine rect brand names and other generic formulations include:

Phenadoz Rect, Phenergan Rect, Promethegan Rect

All generic drug interactions for promethazine rect (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 promethazine rect

dextromethorphan-quinidine oral , promethazine rect . Either increases the level of the other by added drug effects. Combination results in increased heart effects of both drugs.

Patient Drug Interactions Source: RxList
© 2014 RxList, Inc.
Serious - Use AlternativePossible serious or life-threatening interaction. Monitor closely. Use alternatives if available.

dextromethorphan-quinidine oral and promethazine rect

dextromethorphan-quinidine oral , promethazine rect . Either increases effects of the other by pharmacodynamic synergism. Additive cardiac effects.

Clinical Drug Interactions Source: Medscape from WebMD
© 1994-2014 WebMD, LLC.
Serious - Use AlternativeNever use this combination of drugs because of high risk for dangerous interaction

promethazine rect and dextromethorphan-quinidine oral

promethazine rect and dextromethorphan-quinidine oral both increase causing a dangerous abnormal heart rhythm.

Patient Drug Interactions Source: RxList
© 2014 RxList, Inc.
Serious - Use AlternativeNever use combination.

promethazine rect and dextromethorphan-quinidine oral

promethazine rect and dextromethorphan-quinidine oral both increase QTc interval.

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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