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  • Article
  • Open Access
3,433 Views
9 Pages

Abdominal Pain and Chronic Opiate Use in Patients with Gastroparesis

  • Abraham Ifrah,
  • John Ebeid and
  • Henry P. Parkman

Introduction: Although opiate narcotics may worsen gastroparesis(GP), patients can take these for abdominal pain (AP) or other chronic pain syndromes. This study aims to evaluate medications patients with gastroparesis use for AP and compare patients...

  • Review
  • Open Access
23 Citations
11,119 Views
16 Pages

28 January 2011

Self-injurious behavior (SIB) is a primary reason that individuals with neurodevelopmental disabilities (NDD) are either retained in restrictive environments or are administered psychotropic medication. There are no known causes and no universally ac...

  • Systematic Review
  • Open Access
9,654 Views
10 Pages

Opiate Withdrawal-Associated Esotropia: A Case Report and Systematic Review

  • Varun Kasula,
  • Brody M. Fogleman,
  • Maaya Dev,
  • Tyler Rizzieri,
  • Corinne O’Brien and
  • Rupa Shetty

Esotropia, which is the medial deviation of one or both eyes, is a rare withdrawal symptom that has been associated with opiate addiction. We report a case of a 36-year-old female patient who developed acute-onset esotropia and diplopia after self-ad...

  • Article
  • Open Access
9 Citations
2,860 Views
18 Pages

The aim of the current study was to examine the effects of length of abstinence on decision making (impulsive choice) and response inhibition (impulsive action) in former opiate users (OU). Participants included 45 OU in early remission [0–12 m...

  • Article
  • Open Access
1,831 Views
13 Pages

Evaluating Quality of Life Changes over 12 Months Among Opiate Users from Romania and Associated Worsening Factors

  • Melania Lavinia Bratu,
  • Dorel Sandesc,
  • Teodora Anghel,
  • Felix Bratosin,
  • Silviu Valentin Vlad,
  • Artiom Terzi and
  • Caius Glad Streian

21 October 2024

This study aimed to evaluate the changes in quality of life (QoL) over a 12-month period among opiate users in Romania, identifying factors that contribute to a worsening of their condition. By examining these dynamics, the research intended to infor...

  • Article
  • Open Access
8 Citations
4,516 Views
13 Pages

Effects of Buprenorphine Dose and Therapeutic Engagement on Illicit Opiate Use in Opioid Use Disorder Treatment Trials

  • Andrew W. Bergen,
  • James W. Baurley,
  • Carolyn M. Ervin,
  • Christopher S. McMahan,
  • Joe Bible,
  • Randall S. Stafford,
  • Seshadri C. Mudumbai and
  • Andrew J. Saxon

The impact of agonist dose and of physician, staff and patient engagement on treatment have not been evaluated together in an analysis of treatment for opioid use disorder. Our hypotheses were that greater agonist dose and therapeutic engagement woul...

  • Article
  • Open Access
6 Citations
3,678 Views
25 Pages

Effects of a Two-Month Exercise Training Program on Concurrent Non-Opiate Substance Use in Opioid-Dependent Patients during Substitution Treatment

  • Alexandros Psarianos,
  • Costas Chryssanthopoulos,
  • Athanasios Theocharis,
  • Thomas Paparrigopoulos and
  • Anastassios Philippou

6 February 2024

Background: This randomized controlled trial aimed to evaluate the effects of a two-month exercise intervention on the concurrent non-opiate substance use (alcohol, cocaine, cannabis, and benzodiazepines) in opioid users during their medication treat...

  • Article
  • Open Access
11 Citations
4,727 Views
14 Pages

A Study of Opiate, Opiate Metabolites and Antihistamines in Urine after Consumption of Cold Syrups by LC-MS/MS

  • Yao-Te Yen,
  • Yin-Jue Chang,
  • Pin-Jung Lai,
  • Chi-Lun Chang,
  • Ting-Yueh Chen and
  • San-Chong Chyueh

21 February 2020

Studying the origin of opiate and/or opiate metabolites in individual urine specimens after consumption of cold syrups is vital for patients, doctors, and law enforcement. A rapid liquid chromatography–tandem mass spectrometry method using &ldq...

  • Article
  • Open Access
16 Citations
7,169 Views
15 Pages

Low-Impact Ampakine CX1739 Exerts Pro-Cognitive Effects and Reverses Opiate-Induced Respiratory Depression in Rodents

  • Daniel Pierce Radin,
  • Sheng Zhong,
  • Rok Cerne,
  • Mohammed Shoaib,
  • Jeffrey M. Witkin and
  • Arnold Lippa

AMPA-glutamate receptors (AMPARs) are expressed throughout the CNS and mediate the majority of fast excitatory synaptic transmission. Ampakines are orally available small molecules that bind allosterically to AMPARs and enhance excitatory currents el...

  • Article
  • Open Access
2 Citations
1,632 Views
9 Pages

Opiate Prescriptions Vary among Common Urologic Procedures: A Claims Dataset Analysis

  • Anish B. Patel,
  • Praveen N. Satarasinghe,
  • Victoria Valencia,
  • Jessica L. Wenzel,
  • Jack C. Webb,
  • J. Stuart Wolf and
  • E. Charles Osterberg

28 February 2022

Objectives: This study aimed to better understand differences in the total days’ supply and fills of common opiates following urologic procedures. Materials and Methods: The Truven Health MarketScan® database was used to extract CPT codes f...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,568 Views
9 Pages

The Association between a MAOB Variable Number Tandem Repeat Polymorphism and Cocaine and Opiate Addictions in Polyconsumers

  • César Mateu,
  • Marta Rodríguez-Arias,
  • Isis Gil-Miravet,
  • Ana Benito,
  • José M. Tomás and
  • Gonzalo Haro

24 September 2021

Genetic analysis of the association between alcohol, cocaine, and opiate addiction and variable number tandem repeat (VNTR) polymorphisms in monoamine oxidase B (MAOB) and serotonergic 5-hydroxytryptamine (serotonin) receptor 1B and 2C (HTR1B 21 and...

  • Article
  • Open Access
13 Citations
5,310 Views
19 Pages

Stability of Cocaine, Opiates, and Metabolites in Dried Saliva Spots

  • Ema Almeida,
  • Sofia Soares,
  • Joana Gonçalves,
  • Tiago Rosado,
  • Nicolás Fernández,
  • Jesus M. Rodilla,
  • Luís A. Passarinha,
  • Mário Barroso and
  • Eugenia Gallardo

19 January 2022

Drug abuse still represents a global problem, and it is associated with an increased risk of diseases, injuries, and deaths. Cocaine (COC) and opiates are the most abused drugs and account for a significant number of fatalities. Therefore, it is impo...

  • Review
  • Open Access
1,081 Views
26 Pages

Dried Matrix Spots for the Determination of Opiates and Opioids: Methodological Advances and Applications

  • Luana M. Rosendo,
  • Rita Gonçalves,
  • Rodrigo Martins,
  • Vitória Castro,
  • Tiago Rosado,
  • Mário Barroso and
  • Eugenia Gallardo

11 September 2025

Dried matrix spot (DMS) techniques have gained increasing attention in bioanalytical and forensic toxicology for the detection of opiates and opioids, offering minimally invasive sampling, enhanced sample stability, and simplified storage and transpo...

  • Review
  • Open Access
12 Citations
22,856 Views
12 Pages

Opiate Antagonists for Chronic Pain: A Review on the Benefits of Low-Dose Naltrexone in Arthritis versus Non-Arthritic Diseases

  • Praneet Dara,
  • Zeba Farooqui,
  • Fackson Mwale,
  • Chungyoul Choe,
  • Andre J. van Wijnen and
  • Hee-Jeong Im

Chronic pain conditions create major financial and emotional burdens that can be devastating for individuals and society. One primary source of pain is arthritis, a common inflammatory disease of the joints that causes persistent pain in affected peo...

  • Review
  • Open Access
15 Citations
11,004 Views
17 Pages

Opioid Use in Pregnant Women and Neonatal Abstinence Syndrome—A Review of the Literature

  • Fábio Martins,
  • David Oppolzer,
  • Catarina Santos,
  • Mário Barroso and
  • Eugenia Gallardo

16 February 2019

Opiate use during pregnancy has been an increasing problem over the last two decades, making it an important social and health concern. The use of such substances may have serious negative outcomes in the newborn, and clinical and cognitive condition...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,039 Views
13 Pages

Medical Psychotropics in Forensic Autopsies in European Countries: Results from a Three-Year Retrospective Study in Spain

  • Maira Almeida-González,
  • Luis D. Boada,
  • Luis Alberto Henríquez-Hernández,
  • Octavio P. Luzardo,
  • Enrique Zaragoza,
  • Guillermo Burillo-Putze,
  • María P. Quintana-Montesdeoca and
  • Manuel Zumbado

1 February 2022

Medical psychotropics are widely used and prescribed in developed countries. These medications may have an impairing effect on mood or perception and may induce harmful behaviors. Nevertheless, in Europe, studies on their importance from a medico-leg...

  • Article
  • Open Access
5 Citations
2,392 Views
18 Pages

Prospective Study on Factors Associated with Referral of Patients with Opioid Maintenance Therapy from Specialized Addictive Disorders Centers to Primary Care

  • Morgane Guillou-Landreat,
  • Philippe Levassor,
  • Marylène Guerlais,
  • Veronique Sebille and
  • Caroline Victorri-Vigneau

Background: One of the most important issues for opiate maintenance therapy efficacy is the involvement of primary care physicians (PCPs) in opiate use disorder treatment, especially after referral from specialized units. This study aimed to analyze...

  • Article
  • Open Access
6 Citations
4,635 Views
13 Pages

Recreational Drug Overdose—Clinical Value of Toxicological Analysis

  • Tobias Zellner,
  • Florian Eyer,
  • Christian Rabe,
  • Stefanie Geith,
  • Bettina Haberl and
  • Sabrina Schmoll

10 September 2024

Background: Toxicological analysis of patients with acute recreational drug poisoning can improve our understanding of substance use patterns, clinical symptoms, and improve treatment. Patient history alone may be incomplete or misleading. The object...

  • Article
  • Open Access
1 Citations
1,772 Views
8 Pages

12 November 2024

Purpose: To assess (I) whether, in autopsy-proven lethal intoxications with opiates/opioids, a dilatation of the common bile duct (CBD) is still visible in postmortem computed tomography (PMCT) and (II) if a dilatation of the CBD might also be measur...

  • Article
  • Open Access
4 Citations
6,928 Views
13 Pages

20 September 2012

Opiate withdrawal is followed by a protracted abstinence syndrome consisting of craving and physiological changes. However, few studies have been dedicated to both the characterization and understanding of these long-term alterations in post-dependen...

  • Article
  • Open Access
2,253 Views
10 Pages

Extended Overnight Monitoring of Respiratory Events after Bariatric Surgery

  • Christopher Popiolek,
  • Giorgio Melloni,
  • Maha Balouch,
  • Ashley Mooney,
  • Christopher DuCoin,
  • Salvatore Docimo and
  • Enrico Camporesi

15 September 2023

Introduction: Patients receiving bariatric surgery are at risk for sleep apnea (OSA) and need extensive surveillance in the postoperative period. There is evidence of respiratory events (RE) several hours after leaving PACU. We analyzed the late onse...

  • Article
  • Open Access
12 Citations
6,331 Views
32 Pages

Applicability of LC-QToF and Microscopical Tools in Combating the Sophisticated, Economically Motivated Adulteration of Poppy Seeds

  • Bharathi Avula,
  • Kumar Katragunta,
  • Sebastian John Adams,
  • Yan-Hong Wang,
  • Amar G. Chittiboyina and
  • Ikhlas A. Khan

3 April 2023

Morphine and codeine are the two principal opiates found in the opium poppy (Papaver somniferum L.) and are therapeutically used for pain management. Poppy seeds with low opiates are primarily used for culinary purposes due to their nutritional and s...

  • Article
  • Open Access
3,976 Views
11 Pages

24 July 2024

Laparoscopic cholecystectomy (LC) is the gold standard of treatments for symptomatic gallstone disease. The aim of this study is to determine if postoperative opiate use is reduced with transversus abdominus plane (TAP) and rectus sheath (RS) regiona...

  • Article
  • Open Access
16 Citations
6,237 Views
10 Pages

“Difficult to Sedate”: Successful Implementation of a Benzodiazepine-Sparing Analgosedation-Protocol in Mechanically Ventilated Children

  • Nataly Shildt,
  • Chani Traube,
  • Mary Dealmeida,
  • Ishaan Dave,
  • Scott Gillespie,
  • Whitney Moore,
  • Lillian D. Long and
  • Pradip P. Kamat

28 April 2021

We sought to evaluate the success rate of a benzodiazepine-sparing analgosedation protocol (ASP) in mechanically ventilated children and determine the effect of compliance with ASP on in-hospital outcome measures. In this single center study from a q...

  • Article
  • Open Access
7 Citations
6,937 Views
16 Pages

Preclinical Pharmacology of the Low-Impact Ampakine CX717

  • Daniel P. Radin,
  • Sheng Zhong,
  • Rok Cerne,
  • Jodi L. Smith,
  • Jeffrey M. Witkin and
  • Arnold Lippa

Ampakines are a class of orally available positive allosteric modulators of the AMPA-glutamate receptor (AMPAR) and have therapeutic implications for neurological/neuropsychiatric disorders in which AMPAR signaling is compromised. Low-impact ampakine...

  • Feature Paper
  • Review
  • Open Access
22 Citations
11,376 Views
29 Pages

This review (4 tables, 88 references) describes current developments in the design and application of liquid chromatography electrochemical detection (LC ED) based approaches for the determination of drugs of abuse. Specific emphasis is placed on ope...

  • Article
  • Open Access
5 Citations
1,639 Views
7 Pages

Methadone treatment and its dangers

  • Dagmara Reingardienė,
  • Liucija Jodžiūnienė and
  • Robertas Lažauskas

Methadone is a long-acting synthetic opioid with high affinity for various opioid receptors, especially for μ-opioid receptors. Methadone has been used as a successful pharmacologic intervention for the treatment of heroin dependence and acute and ch...

  • Review
  • Open Access
10 Citations
17,510 Views
41 Pages

Morphine and codeine, two of the most common opioids, are widely used in the clinic for different types of pain. Morphine is one of the most potent agonists for the μ-opioid receptor, leading to the strongest analgesic effect. However, due to thei...

  • Article
  • Open Access
13 Citations
8,350 Views
14 Pages

Design, Synthesis and Biological Evaluation of Brain-Targeted Thiamine Disulfide Prodrugs of Ampakine Compound LCX001

  • Dian Xiao,
  • Fan-Hua Meng,
  • Wei Dai,
  • Zheng Yong,
  • Jin-Qiu Liu,
  • Xin-Bo Zhou and
  • Song Li

Ampakine compounds have been shown to reverse opiate-induced respiratory depression by activation of amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) glutamate receptors. However, their pharmacological exploitations are hindered by low blood...

  • Review
  • Open Access
2 Citations
2,905 Views
30 Pages

17 September 2025

Opioid-use disorder (OUD) poses a growing global health crisis, with chronic opioid exposure linked not only to addiction but also to enduring neurological impairments. While traditional research has focused primarily on neuronal alterations, emergin...

  • Review
  • Open Access
24 Citations
7,493 Views
13 Pages

Naltrexone Implant for Opioid Use Disorder

  • Amber N. Edinoff,
  • Catherine A. Nix,
  • Claudia V. Orellana,
  • Samantha M. StPierre,
  • Erin A. Crane,
  • Blaine T. Bulloch,
  • Elyse M. Cornett,
  • Rachel L. Kozinn,
  • Adam M. Kaye and
  • Alan D. Kaye
  • + 1 author

30 December 2021

The continued rise in the availability of illicit opioids and opioid-related deaths in the United States has left physicians, researchers, and lawmakers desperate for solutions to this ongoing epidemic. The research into therapeutic options for the t...

  • Article
  • Open Access
8 Citations
27,454 Views
17 Pages

25 March 2015

The illegal use of opiates and cocaine is a challenge world-wide, but some derivatives are also valuable pharmaceuticals. Reference samples of the active ingredients and their metabolites are needed both for controlling administration in the clinic a...

  • Communication
  • Open Access
2 Citations
2,235 Views
8 Pages

Prophylactic High-Dose Gabapentin Reduces Opiate Use during Radiation Therapy for Head and Neck Squamous Cell Carcinoma

  • Michelle L. Qiu,
  • Austin J. Iovoli,
  • Michael Khan,
  • Mark K. Farrugia,
  • Sung Jun Ma and
  • Anurag K. Singh

28 March 2023

Background: The role of prophylactic high-dose gabapentin for the management of oral mucositis during radiation therapy for head and neck squamous cell carcinoma (HNSCC) remains controversial. Methods: A retrospective cohort analysis was performed on...

  • Article
  • Open Access
17 Citations
2,802 Views
12 Pages

Opiophobia in Emergency Department Healthcare Providers: A Survey in Western Switzerland

  • Sarah Bertrand,
  • Gabriel Meynet,
  • Patrick Taffé,
  • Vincent Della Santa,
  • Daniel Fishman,
  • Yvan Fournier,
  • Vincent Frochaux,
  • Vincent Ribordy,
  • Olivier T. Rutschmann and
  • Olivier Hugli

25 March 2021

Opiophobia contributes to oligoanalgesia in the emergency department (ED), but its definition varies, and its association to healthcare providers’ personality traits has been scantly explored. Our purpose was to study the different definitions of opi...

  • Brief Report
  • Open Access
4 Citations
2,648 Views
7 Pages

What Differs between Patients under Methadone and under Buprenorphine for Opioid Use Disorder (OUD) in Daily Clinical Practice in France? A Short Report

  • Morgane Guillou-Landreat,
  • Antoine Dany,
  • Gaëlle Challet-Bouju,
  • Edouard Laforgue,
  • Juliette Leboucher,
  • Jean Benoit Hardouin,
  • Caroline Victorri-Vigneau and
  • Marie Grall-Bronnec

(1) Background: Opioid use disorder (OUD) is a complex condition that can require long-term treatment. Pharmacological therapy for OUD involves treatment with opioid agonists (OMT) tailored to individual profiles. The aim of our study in daily clinic...

  • Article
  • Open Access
22 Citations
8,305 Views
21 Pages

25 July 2020

(1) Introduction: Drug-related deaths in the UK are at concerning high levels. The unknown content and purity of illicit substances can cause unpredictable adverse effects and thus a public health risk with no sign of abating. On-site drug checking i...

  • Article
  • Open Access
16 Citations
5,881 Views
9 Pages

Prescription Opioid Distribution after the Legalization of Recreational Marijuana in Colorado

  • Amalie K. Kropp Lopez,
  • Stephanie D. Nichols,
  • Daniel Y. Chung,
  • Daniel E. Kaufman,
  • Kenneth L. McCall and
  • Brian J. Piper

There have been dynamic changes in prescription opioid use in the US but the state level policy factors contributing to these are incompletely understood. We examined the association between the legalization of recreational marijuana and prescription...

  • Article
  • Open Access
6 Citations
4,889 Views
11 Pages

Unnatural Death among Treatment Seeking Substance Users in Singapore: A Retrospective Study

  • Asharani PV,
  • Tan Jun Wen,
  • Mohamed Zakir Karuvetil,
  • Alvin Cheong,
  • Christopher Cheok and
  • Gomathinayagam Kandasami

Substance use carries a higher risk of unnatural death. A retrospective analysis of 42 treatment seekers between 2011–2015 was conducted through medical record review to understand the profile and circumstances leading to premature deaths. Nine...

  • Review
  • Open Access
2,179 Views
56 Pages

13 October 2025

Diamorphine (DIM, heroin) is a semi-synthetic opioid that undergoes rapid conversion to 6-monoacetylmorphine and morphine, producing short-lived biomarkers that are difficult to capture during the process. This review critically explores the evolutio...

  • Article
  • Open Access
11 Citations
4,916 Views
33 Pages

Heroin-Related Fatalities in Jeddah, Saudi Arabia, between 2008 and 2018

  • Ahmed I. Al-Asmari,
  • Hassan Alharbi,
  • Abdulnasser E. Al-Zahrani and
  • Torki A. Zughaibi

6 March 2023

To date, epidemiological studies have not evaluated heroin-related deaths in the Middle East and North African regions, especially Saudi Arabia. All heroin-related postmortem cases reported at the Jeddah Poison Control Center (JPCC) over a 10-year pe...

  • Article
  • Open Access
6 Citations
4,254 Views
12 Pages

Declining but Pronounced State-Level Disparities in Prescription Opioid Distribution in the United States

  • Joshua D. Madera,
  • Amanda E. Ruffino,
  • Adriana Feliz,
  • Kenneth L. McCall,
  • Corey S. Davis and
  • Brian J. Piper

16 January 2024

The United States (US) opioid epidemic is a persistent and pervasive public health emergency that claims the lives of over 80,000 Americans per year as of 2021. There have been sustained efforts to reverse this crisis over the past decade, including...

  • Article
  • Open Access
1 Citations
1,953 Views
17 Pages

Voluntary Exercise Ameliorates Chronic Ethanol Withdrawal-Induced Adaptations of Opioid Receptor Expression in the Nucleus Accumbens, Dopamine Release, and Ethanol Consumption

  • Christina A. Nelson,
  • James N. Brundage,
  • Benjamin M. Williams,
  • Jared K. Baldridge,
  • Alyssa L. Stockard,
  • Charlton H. Bassett,
  • Brandon J. Burger,
  • Bridger T. Gunter,
  • Andrew J. Payne and
  • Kyle B. Bills
  • + 2 authors

Exercise has increasingly been recognized as an adjunctive therapy for alcohol-use disorder (AUD), yet our understanding of its underlying neurological mechanisms remains limited. This knowledge gap impedes the development of evidence-based exercise...

  • Review
  • Open Access
7 Citations
3,912 Views
24 Pages

2 October 2023

The goal of this review is to provide a recent examination of the pharmacodynamics as well as pharmacokinetics, misuse potential, toxicology, and prenatal consequences of buprenorphine. Buprenorphine is currently a Schedule III opioid in the US used...

  • Article
  • Open Access
11 Citations
7,999 Views
22 Pages

28 August 2020

Opioids and their antagonists alter vitamin C metabolism. Morphine binds to glutathione (l-γ-glutamyl-l-cysteinyl-glycine), an intracellular ascorbic acid recycling molecule with a wide range of additional activities. The morphine metabolite mo...

  • Article
  • Open Access
11 Citations
6,102 Views
21 Pages

24 August 2019

Crosstalk between opioid and adrenergic receptors is well characterized and due to interactions between second messenger systems, formation of receptor heterodimers, and extracellular allosteric binding regions. Both classes of receptors bind both se...

  • Article
  • Open Access
1 Citations
4,246 Views
12 Pages

3 September 2023

Opium smoking has been a common practice in Iran for many years, with people often smoking for long hours. During the COVID-19 pandemic, there was an increase in opium smoking due to false beliefs about its protective effects against COVID-19 infecti...

  • Review
  • Open Access
10 Citations
4,730 Views
13 Pages

Opioid Analgesics after Bariatric Surgery: A Scoping Review to Evaluate Physiological Risk Factors for Opioid-Related Harm

  • Stephanie C. M. Wuyts,
  • Bart Torensma,
  • Arnt F. A. Schellekens and
  • Cornelis (Kees) Kramers

27 June 2023

The persisting use of opioids following bariatric surgery has emerged as a prevalent complication, heightening the probability of opioid-related harm (ORM), such as opioid-related fatalities and prescription opioid use disorder (OUD). A comprehensive...

  • Short Note
  • Open Access
1 Citations
2,585 Views
9 Pages

Cocrystal of Codeine and Cyclopentobarbital

  • Thomas Gelbrich,
  • Jascha Schinke and
  • Ulrich J. Griesser

11 September 2023

The two-component compound formed by codeine and cyclopentobarbital was produced using grinding techniques and through evaporation from alcoholic solutions. The cocrystal nature of this phase was established unequivocally through single crystal X-ray...

  • Review
  • Open Access
2 Citations
6,411 Views
21 Pages

Psychodynamic Therapies for the Treatment of Substance Addictions: A PRISMA Meta-Analysis

  • Marco Zuccon,
  • Eleonora Topino,
  • Alessandro Musetti and
  • Alessio Gori

7 October 2023

The aim of this meta-analysis was to compare psychodynamic with other treatments in studies of substance addiction. The literature search was conducted using the PubMed, Web of Science, Cohcrane library, SCOPUS, and Onesearch databases. All studies c...

  • Article
  • Open Access
1 Citations
1,788 Views
13 Pages

Declines in Tapentadol Use in the US but Pronounced Regional Variation

  • Ching Y. Low,
  • Kenneth L. McCall and
  • Brian J. Piper

Background: Tapentadol is an atypical opioid with a dual mechanism as a mu agonist and norepinephrine reuptake inhibitor. This study characterized tapentadol use in the United States (US) using three databases. Methods: Drug distribution data from 20...

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