Injectable codeine is obtainable for subcutaneous or intramuscular injection only; intravenous injection is contraindicated, as this may end up in nonimmune mast-mobile degranulation and resulting anaphylactoid reaction. Codeine suppositories can also be promoted in some countries. Codeine can be an opiate and an agonist with the mu opioid receptor (MOR). https://codeingil.com/