Injectable codeine is readily available for subcutaneous or intramuscular injection only; intravenous injection is contraindicated, as this may result in nonimmune mast-mobile degranulation and resulting anaphylactoid response. Codeine suppositories may also be marketed in certain nations. Codeine is undoubtedly an opiate and an agonist of the mu opioid receptor (MOR). https://codeingil.com/