WebMD states that M-End WC is a product composed of a decongestant, a narcotic cough suppressant and an antihistamine to treat common cold, hay fever, allergies and breathing illness symptoms. It is a potent medicine that contains codeine and should be used with care.
When taking M-End WC in liquid form, WebMD states that it is important for one to use a medication-measuring device to ensure proper dosage. M-End WC can be taken with or without food, and it should be taken with food if the product causes stomach irritation.
WebMD warns that M-End WC can cause serious mood changes and breathing issues and that it is connected to addictive habits being formed in some users.