Injectable codeine is available for subcutaneous or intramuscular injection only; intravenous injection is contraindicated, as this may lead to nonimmune mast-mobile degranulation and resulting anaphylactoid response. Codeine suppositories are also promoted in a few international locations. Codeine is surely an opiate and an agonist of the mu opioid receptor (MOR). https://www.codeingil.com/