Drugs Home > Precautions and Warnings With Dextromethorphan and Quinidine

You may not be able to safely take dextromethorphan and quinidine if you have certain medical conditions, such as high blood pressure, heart problems, or Alzheimer's disease. Other precautions and warnings with dextromethorphan and quinidine involve the danger of potentially serious drug interactions, the risk of developing heart rhythm problems, and the safety of using it when pregnant or breastfeeding.

What Should I Tell My Healthcare Provider Before Taking Dextromethorphan and Quinidine?

You should talk with your healthcare provider prior to taking dextromethorphan and quinidine (Nuedexta™) if you have:
Also, let your healthcare provider know if you are:
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.


Make sure to tell your healthcare provider about all other medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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