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  1. Codeine Uses, Dosage, Side Effects & Warnings - Drugs.com

  2. Codeine (Oral Route) Description and Brand Names - Mayo Clinic

  3. Codeine - Wikipedia

  4. Codeine: 7 things you should know - Drugs.com

  5. Codeine Tablets: Uses & Side Effects - Cleveland Clinic

  6. Codeine (Oral Route) Proper Use - Mayo Clinic

  7. Codeine: Pain Uses, Side Effects, Dosage, Addiction - MedicineNet

  8. Codeine Sulfate - Uses, Side Effects, and More - WebMD

  9. Codeine - StatPearls - NCBI Bookshelf - National Center for ...

  10. Codeine for pain relief. Codeine uses, side effects and dosage.