Codeine

Codeine is an opiate used to treat pain, as a cough medicine, and for diarrhea.[2][3] It is typically used to treat mild to moderate degrees of pain.[2] Greater benefit may occur when combined with paracetamol (acetaminophen) or a nonsteroidal anti-inflammatory drug (NSAID) such as aspirin or ibuprofen.

Side Effects
More commonly reported ones are:

More commonly reported ones in children are:

Less commonly reported ones are: