Sounds like Duradex or Duradux prescribed for bronchitis and pneumonia. Found Duralex but looks that has been removed from market several years ago. Same dr has prescribed this twice today.
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The drug is DuraDEX. It is a combination of dextromethorphan and guaifenesin marketed by ProEthic Pharmaceuticals. Here is a site where they list other drugs you might hear as well:
The drug is DuraDEX. It is a combination of dextromethorphan and guaifenesin marketed by ProEthic Pharmaceuticals. Here is a site where they list other drugs you might hear as well:
duradex 
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