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How Long Does Fentanyl Stay In Your System?

Fentanyl is a synthetic opioid drug that was originally synthesized in the early 1960s by Paul Janssen, founder of Janssen Pharmaceutica.  The drug initially gained mainstream popularity as a general anesthetic in the 1960s under the brand “Sublimaze”, a compound consisting of fentanyl and citric acid.  It wasn’t until the 1990s that fentanyl was approved …

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How Long Does Klonopin (Clonazepam) Stay In Your System?

Klonopin (Clonazepam) is a benzodiazepine medication utilized primarily for the treatment of anxiety disorders and acute epilepsy.  It is also prescribed off-label for a host of other medical conditions including: acute mania, akathisia, bruxism, insomnia, and restless leg syndrome.  As a benzodiazepine, it functions principally by modulating the neurotransmission of GABA (gamma-aminobutyric acid) within the …

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How Long Does Suboxone Stay In Your System?

Suboxone is a semisynthetic drug manufactured by Reckitt Benckiser pharmaceuticals for the treatment of opioid dependence.  It was introduced to the market in October 2002 and gained popularity as a result of its efficacy and reduced potential for abuse compared to other opioid replacement agents such as methadone.  The drug is comprised of the ingredients …

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How Long Does Vyvanse Stay In Your System?

Vyvanse (Lisdexamfetamine) is a psychostimulant medication manufactured by Shire Pharmaceuticals for the treatment of ADHD (attention-deficit/hyperactivity disorder).  Many consider Vyvanse to be a “new and improved” successor of the drug Adderall.  Vyvanse contains the ingredient Lisdexamfetamine which is pharmacologically inactive until metabolized; hence being classified as a “prodrug.” The fact that Vyvanse is a prodrug …

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How Long Does Methadone Stay In Your System?

Methadone is a popular synthetic opioid utilized for the treatment of opioid dependence as a “replacement therapy.”  Individuals addicted to highly potent opioidergic agents (e.g. heroin) are often prescribed methadone as a transitory “replacement” drug.  Administration of methadone as a replacement over heroin is preferred because it is medically viewed as being slightly less addictive.  …

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How Long Does Codeine Stay In Your System?

Codeine (3-methylmorphine) is an opioid medication commonly prescribed for the treatment of severe coughing (antitussive), mild to moderate pain (analgesic), and/or uncontrollable diarrhea (antidiarrheal).  It is considered a natural form of methylated morphine and is the second-most significant alkaloid in opium, accounting for up to 3%.  In the United States, codeine is typically manufactured in …

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