Promethazine DM does not contain codeine. It is a combination medication that includes promethazine hydrochloride, an antihistamine and antiemetic, and dextromethorphan hydrobromide, a cough suppressant [1].
What is Promethazine DM used for?
Promethazine DM is prescribed to relieve cough and cold symptoms. Its antihistamine component helps alleviate symptoms like sneezing, runny nose, and itchy, watery eyes, while the cough suppressant works to reduce the urge to cough [1].
Are there other types of Promethazine with codeine?
Yes, there are other formulations of promethazine that do contain codeine. One such combination is promethazine with codeine oral solution, often prescribed for cough and cold symptoms. This formulation includes promethazine hydrochloride and codeine phosphate, a Schedule V controlled substance [2].
Why is it important to distinguish between Promethazine DM and Promethazine with Codeine?
It is crucial to distinguish between these medications due to their different active ingredients and potential for misuse. Promethazine with codeine, containing codeine, carries a risk of dependence and abuse, and its prescription is subject to stricter regulations. Promethazine DM, lacking codeine, does not have the same abuse potential [1, 2].
Where can I find information on drug patents for medications like these?
Information regarding drug patents, including expiry dates and patent challenges, can be found on DrugPatentWatch.com [3].