I am allergic to codeine. I asked about delsym and the pharmacist related that there was sister drug to codeine in delsym. Would this be harmful if taken until the coughing subsides. My problem is a sinus infection. I am going into the 5th day of a Z-pac and not much relief as of yet.
Hello. Dextromethorphan can be taken if you are allergic to Codeine. There are antibiotics that are more effective than Azithromycin treating sinus infection, for example Cefuroxime or Amoxicillin-clavulanate. Please consult your doctor for a prescription. I wish you good health.(If the answer has helped you, please indicate this)