Naltrexone was given to ten opiate-free volunteer subjects following the same dosage schedule used for initiating treatment of opiate-dependent persons. During the three-week initiation period, three subjects dropped from the study owing to aversive effects of the drug. The remaining seven subjects reported similar unpleasant but tolerable effects. A separate group of ten volunteer subjects was given single doses of 50 or 100 mg of naltrexone or a naltrexone placebo on three separate occasions using blind controls. These subjects also reported aversive effects. The principal symptoms reported were loss of energy, gastrointestinal disturbances and mental depression. It is possible that these aversive reactions of naltrexone have limited acceptance of the drug as a treatment for opiate-dependent persons.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0376-8716(81)90084-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Randomized Controlled Trial of the Effects of High-Dose Ondansetron on Clinical Symptoms and Brain Connectivity in Obsessive-Compulsive and Tic Disorders.
Am J Psychiatry
January 2025
Nathan Kline Institute for Psychiatric Research, Orangeburg, NY (Stern, Collins, Bragdon, Eng, Recchia, Tobe, Iosifescu); Department of Psychiatry (Stern, Bragdon, Eng, Recchia, Iosifescu) and Neuroscience Institute (Stern, Iosifescu), New York University Langone Medical Center, New York; Department of Psychiatry, University of Miami Medical School, Miami (Coffey); Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York (Leibu, Murrough); Center for the Developing Brain, Child Mind Institute, New York (Tobe); Department of Psychiatry, Brigham and Women's Hospital, Boston (Burdick); Harvard Medical School, Boston (Burdick); Department of Psychiatry, Baylor College of Medicine, Houston (Goodman).
Objective: Sensory phenomena (SP) are aversive sensations driving repetitive behaviors in obsessive-compulsive disorder (OCD) and Tourette's disorder that are not well addressed by standard treatments. SP are related to the functioning of an interoceptive-sensorimotor circuit that may be modulated by the 5-HT receptor antagonist ondansetron. The present study employed an experimental medicine approach to test the effects of 4 weeks of high-dose ondansetron compared to placebo on SP severity and brain connectivity in a cohort of individuals with OCD and/or Tourette's disorder.
View Article and Find Full Text PDFThe role of ketamine and its enantiomer in managing depression and pain in cancer patients: A narrative review.
J Anesth Transl Med
December 2024
Department of Anesthesiology, Moffitt Cancer Center, Tampa, FL 34433, USA.
Depression and pain are common comorbidities in cancer patients, and ketamine, a dissociative anesthetic, has shown potential in managing both. This review summarizes current literature on ketamine and its enantiomer, esketamine, in managing depression and pain in the oncologic population. Studies indicate that sub-anesthetic doses of intravenous ketamine and esketamine can alleviate postoperative depressive symptoms in cancer patients with a tolerable safety profile.
View Article and Find Full Text PDFBehavioral and neurophysiological effects of electrical stunning on zebrafish larvae.
Lab Anim (NY)
January 2025
Werner Reichardt Centre for Integrative Neuroscience and Institute for Neurobiology, University of Tuebingen, Tuebingen, Germany.
Two methods dominate the way that zebrafish larvae are euthanized after experimental procedures: anesthetic overdose and rapid cooling. Although MS-222 is easy to apply, this anesthetic takes about a minute to act and fish show aversive reactions and interindividual differences, limiting its reliability. Rapid cooling kills larvae after several hours and is not listed as an approved method in the relevant European Union directive.
View Article and Find Full Text PDFLarge library docking of tangible molecules has revealed potent ligands across many targets. While make-on-demand libraries now exceed 75 billion enumerated molecules, their synthetic routes are dominated by a few reaction types, reducing diversity and inevitably leaving many interesting bioactive-like chemotypes unexplored. Here, we investigate the large-scale enumeration and targeted docking of isoquinuclidines.
View Article and Find Full Text PDFSocial vocalizations contain cues that reflect the motivational state of a vocalizing animal. Once perceived, these cues may in turn affect the internal state and behavioral responses of listening animals. Using the CBA/CAJ mouse model of acoustic communication, this study examined acoustic cues that signal intensity in male-female interactions, then compared behavioral responses to intense mating vocal sequences with those from another intense behavioral context, restraint.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!