Drug interactions of clinical importance among the opioids, methadone and buprenorphine, and other frequently prescribed medications: a review.

Metabolism and Disposition of Prescription Opioids: A Review.

Opioid analgesics are commonly prescribed for acute and chronic pain, but are subject to abuse. Consequently, toxicology testing programs are frequently implemented for both forensic and clinical applications. Understanding opioid metabolism and disposition is essential for assessing risk of toxicity and, in some cases, providing additional information regarding risk of therapeutic failure. Opi...

Codeine and methadone interactions

Cytochrome P450; Drug Interactions; CYP3A4; CYP2D6; Metabolites; Opioids. Introduction metabolism of codeine, fentanyl, methadone, oxycodone, and . WebMD provides information about interactions between Codeine Sulfate Oral and. Buprenorphine effects in methadone-maintained volunteers: effects at two . Methadone is a potent drug, and can interact with other drugs to have block the high of other ...

PCSS-B Guidance Topic: Clinically Relevant Drug Interactions: Buprenorphine or Methadone with Other Frequently Prescribed Drugs

Methadone, Buprenorphine, and Street Drug Interactions with Antiretroviral Medications

While street drugs appear unlikely to alter the metabolism of antiretroviral (ARV) medications, several ARVs may induce or inhibit metabolism of various street drugs. However, research on these interactions is limited. Case reports have documented life-threatening overdoses of ecstasy and gamma-hydroxybutyrate after starting ritonavir, an ARV that inhibits several metabolic enzymes. For opioid ...

Pharmacokinetic drug interactions and adverse consequences between psychotropic medications and pharmacotherapy for the treatment of opioid dependence.

BACKGROUND Psychiatric comorbidities among opioid-dependent patients are common. Many medications used to treat both conditions are metabolized through complimentary cytochrome P450 isoenzymes. When medication-assisted treatment for opioid dependence is concurrently used with psychotropic medications, problematic pharmacokinetic drug interactions may occur. METHODS We reviewed relevant Englis...