pyrimidinones and Opioid-Related-Disorders

pyrimidinones has been researched along with Opioid-Related-Disorders* in 4 studies

Trials

1 trial(s) available for pyrimidinones and Opioid-Related-Disorders

ArticleYear
Absence of opioid withdrawal symptoms in patients receiving methadone and the protease inhibitor lopinavir-ritonavir.
    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2002, Apr-15, Volume: 34, Issue:8

    A study was designed to determine the interactions, both clinical and pharmacokinetic, between methadone and lopinavir-ritonavir. Results demonstrated a 36% reduction in the methadone area under the plasma concentration-time curve after the introduction of lopinavir-ritonavir, with no coincident symptoms of opioid withdrawal and no requirement for methadone dose adjustment.

    Topics: Adult; Analgesics, Opioid; Drug Interactions; Female; HIV Infections; HIV Protease Inhibitors; Humans; Lopinavir; Male; Methadone; Opioid-Related Disorders; Pyrimidinones; Ritonavir; RNA, Viral; Substance Withdrawal Syndrome

2002

Other Studies

3 other study(ies) available for pyrimidinones and Opioid-Related-Disorders

ArticleYear
Interactions between buprenorphine and antiretrovirals. II. The protease inhibitors nelfinavir, lopinavir/ritonavir, and ritonavir.
    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2006, Dec-15, Volume: 43 Suppl 4

    We examined drug interactions between buprenorphine, an opioid partial agonist available by prescription for treatment of opioid dependence, and the protease inhibitors (PIs) nelfinavir (NFV), ritonavir (RTV), and lopinavir/ritonavir (LPV/R). Opioid-dependent, buprenorphine/naloxone-maintained, human immunodeficiency virus (HIV)-negative volunteers (n=10 per PI) participated in 24-h pharmacokinetic studies, before and after administration of each PI. Symptoms of opiate withdrawal and excess were determined before and after PI administration. PI pharmacokinetics were determined and compared between opiate-dependent participants and healthy control participants (n=15 per PI). Administration of RTV, but not of NFV or LPV/R, resulted in a significant increase in the buprenorphine area under the concentration-time curve (AUC). Symptoms of opiate excess, however, were not observed. Buprenorphine had no significant effects on PI AUC. Adjustments of doses of either buprenorphine or NFV, LPV/R, or RTV are not likely to be necessary when these drugs are administered for the treatment of opioid dependence and HIV disease.

    Topics: Adult; Buprenorphine; Case-Control Studies; Cohort Studies; Dose-Response Relationship, Drug; Drug Administration Schedule; Drug Interactions; Female; HIV Protease Inhibitors; HIV Seronegativity; Humans; Lopinavir; Male; Narcotic Antagonists; Nelfinavir; Opioid-Related Disorders; Probability; Pyrimidinones; Reference Values; Risk Assessment; Ritonavir

2006
The protease inhibitor lopinavir-ritonavir may produce opiate withdrawal in methadone-maintained patients.
    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2003, Aug-15, Volume: 37, Issue:4

    This study examines the pharmacokinetic/pharmacodynamic interactions between (1) lopinavir-ritonavir (L/R), a fixed combination of protease inhibitors used for the treatment of HIV disease, and (2) ritonavir alone at the same dosage as that in the L/R formulation, with methadone, an opiate frequently used in substance abuse pharmacotherapy for opioid (heroin)-dependent injection drug users, many of whom are infected with HIV. L/R was associated with significant reductions in the methadone area under the concentration-time curve (P<.001), maximum concentration (P<.001), and minimum concentration (P<.001), as well as increased methadone oral clearance (P<.001) and increased opiate withdrawal symptoms (P=.013), whereas ritonavir use alone modestly and nonsignificantly increased methadone concentrations. Lopinavir is a potent inducer of methadone metabolism, and treatment with L/R requires clinical monitoring and increased methadone doses in some patients, whereas ritonavir has no significant effect on methadone metabolism.

    Topics: HIV Infections; HIV Protease Inhibitors; Humans; Lopinavir; Methadone; Narcotics; Opioid-Related Disorders; Pyrimidinones; Ritonavir; Substance Withdrawal Syndrome

2003
From the Food and Drug Administration.
    JAMA, 2000, Nov-01, Volume: 284, Issue:17

    Topics: Adult; Antineoplastic Agents; Arsenic Trioxide; Arsenicals; Buprenorphine; Child; Drug and Narcotic Control; Drug Combinations; Drugs, Investigational; HIV Infections; HIV Protease Inhibitors; Humans; Infant; Leukemia, Promyelocytic, Acute; Lopinavir; Opioid-Related Disorders; Oxides; Pyrimidinones; Receptors, Opioid; Ritonavir; United States; United States Food and Drug Administration

2000