https://www.selleckchem.com/products/GDC-0449.html Clinicians are facing diagnostic, treatment and follow-up challenges for the management of these cases.In this article, a broad overview of medication-assisted treatment (MAT) for opioid dependence has been provided. Significant benefits of commonly used drugs (buprenorphine, methadone, and naltrexone-based regimens) along with the therapeutic aspects of other available options are highlighted. Salient points on each or individual drug therapy, comparison of pharmacological profiles of dif-ferent drugs, effective clinical practice in different scenarios, relevant drug interactions, and safety issues in various populations have been emphasized. Finally, special issues, such as cost-effectiveness of different medication regimens, community-based approach, dealing with a special population, and upcoming new treatment modalities of MAT have been discussed.Opioids can be an effective treatment option for appropriate patients with chronic pain for whom nonpharmacological or nonopioid treatment does not provide adequate pain relief. However, extended-release (ER) opioid formulations, because of their high drug content, are attractive options for nonmedical use and abuse. Xtampza® ER (oxycodone DETERx®) capsules, an ER abuse-deterrent formulation (ADF), contain microspheres that combine oxycodone with inactive ingredients to increase the difficulty of tampering with the ER mechanism. The aim of this article is to review five previously published studies highlighting the impact of physical manipula-tion (ie, crushing and chewing) on the pharmacokinetic (PK) properties of orally administered Xtampza ER compared with immedi-ate-release (IR) oxycodone and/or reformulated OxyContin® (the first approved oxycodone ER ADF). Across five studies, manipulated (crushed or chewed) Xtampza ER retained an ER PK profile similar to that of intact Xtampza ER, with respect to maximum plasma con-centration (Cmax) and time to Cmax. Additionally