Codeine is an opiate/opioid medication, sometimes known as a narcotic that is beneficial for treating mild to moderate pain (severe), coughing, and diarrhea.
Codeine works by stopping pain signals from traveling along the brain's nerves and relieving the pain by holding the pain signals to move further to the brain through nerves.
There is no evidence of its working in children or adults as an acute cough suppressant.
Codeine is an endogenous compound accompanying morphine, which one can find in nonhuman pirates' brains with depolarized neurons.
It indicates that Codeine may function as a neuromodulator or neurotransmitter in the central nervous system (CNS).
Combining Codeine with Acetaminophen (paracetamol) or an NSAID (a nonsteroidal anti-inflammatory drug) such as ibuprofen or aspirin gives the best results.