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A semi-synthetic opioid analgesic also known as Subutex. Often administered as Butrans patches, or in combination with Naloxone as Suboxone, a heroin replacement therapy drug. Will cause withdrawals if patient has an opioid tolerance and doesn’t wait long enough (typically around 48 hours) before taking...

Desmethyltapentadol is a metabolite of tapentadol that is an opioid used to manage severe pain that has not responded to non-opioid medications....

EDDP is a primary metabolite of methadone. Detectable in Urine: 1hr to 4 days - excretion of the metabolite EDDP found in urine via the kidneys....

A potent synthetic opioid used for pain control during surgery and for chronic or breakthrough cancer pain. Works in the brain to block pain and is in the same class of drugs as morphine or hydrocodone but is about 50 to 100 times more...

Helps relieve moderate to severe pain. It may also be used before and during surgery or other procedures. Meperidine belongs to a class of drugs known as opioid analgesics and is like morphine. It works in the brain to change how your body feels and...

A medication approved by the Food and Drug Administration (FDA) to treat opioid use disorder (OUD) as a medication-assisted treatment (MAT), as well as for pain management. When taken as prescribed, methadone is safe and effective. Methadone helps individuals achieve and sustain recovery and to...

Buprenorphine (BUP) is an oripavine analgesic that is beneficial in the maintenance treatment of opiate-dependent individuals. Although BUP has been studied extensively, relatively little is known about norbuprenorphine (norBUP), a major dealkylated metabolite of BUP....

Nor fentanyl is a Fentanyl metabolite and a potent synthetic narcotic analgesic with a rapid onset and short duration of action. Historically it has been used to treat breakthrough pain and is commonly used as a pre-op pain reliever. ...

Normeperidine, a major metabolite of meperidine, is half as potent as meperidine as an analgesic but two to three times more potent as a convulsant....

O-Desmethyltramadol is an opioid analgesic and an active primary blood metabolite of the synthetic analgesic tramadol. O-Desmethyltramadol is the active component in the designer drug “Krypton”, which is marketed in many countries as a legal high....