They also found that the drugs lowered risk of suicidal thoughts and attempted or intentional self-harm by 10%; schizophrenia and other psychiatric disorders by 18%, and dementia and Alzheimer's ...

Reversing opioid overdoses in rats using a drug that does not enter the brain prevents the sudden and severe withdrawal symptoms associated with therapeutics that target the central nervous system.

A study conducted at Turku PET Centre in Finland showed that changes in the functioning of opioid neurotransmitters in the brain may underlie anorexia.