Introduction
Opioids are one of the oldest known psychoactive drugs in the world and are listed by the World Health Organization (WHO) as drugs used for acute and cancer pain, as well as palliative care. In most countries/regions, the use of…

Opioids are one of the oldest known psychoactive drugs in the world and are listed by the World Health Organization (WHO) as drugs used for acute and cancer pain, as well as palliative care. In most countries/regions, the use of…