Auto-antagonism of buprenorphine

Buprenorphine and opioid antagonism, tolerance, and naltrexone-precipitated withdrawal.

The dual antagonist effects of the mixed-action μ-opioid partial agonist/κ-opioid antagonist buprenorphine have not been previously compared in behavioral studies, and it is unknown whether they are comparably modified by chronic exposure. To address this question, the dose-related effects of levorphanol, trans-(-)-3,4-dichloro-N-methyl-N-[2-(1-pyrrolidinyl)cyclohexyl] benzeneacetamide (U50,488...

A homotropic two-state model and auto-antagonism

BACKGROUND Bell-shaped and terraced dose-response relations have been observed in single ligand application for enzymes, carriers, transporters, G protein-coupled receptors as well as for other receptive units. It seems that there is still a need for new models as analytical tools for such dose-responses, especially in the light of expanding di- and multi-merization of the receptive units for f...

Comparison of Buprenorphine and Buprenorphine/naloxone in Detoxification of Opioid-dependent Men

Background: Buprenorphine sublingual tablets are now available in Iran for opioid detoxification in clinics. Aim of the present study was to compare the efficiency of buprenorphine with buprenorphine/naloxone in short-term detoxification in a group of Iranian male opioid-dependent patients. Methods:A double-blind trial was carried out on a gro...

Benefits of using intrathecal Buprenorphine

Background: General anesthesia draw the most commonly used modalities for post cesarean delivery pain relief is systemic administration of opioids, while the administration of small dose of intrathecal opioid during spinal anesthesia can be a possible alternative. The aim of this study was to evaluate the effects of buprenorphine on cesarean section prescribed intrathecally. Methods: In this d...

Buprenorphine.