Abstract
The research paper discusses the origin and nature of methadone, including the historical aspect of its development and further commercial and scientific use. The paper also describes the pharmacology of methadone, including the route of administration of the drug, its metabolism and its mechanism of action. Next section of the paper explains the experience in medical use of methadone, as it`s a great alternative to the painkillers based on the opiates, it plays a major role in the therapy of maintaining and replacement and treating the withdrawals syndromes. The positive effects on the pregnant patients are also described here with a ...