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Dextromethorphan, sold under the brand name Robitussin among others, is a cough suppressant used in many cough and cold medicines. [6] In 2022, the US Food and Drug Administration (FDA) approved the combination dextromethorphan/bupropion to serve as a rapid-acting antidepressant in people with major depressive disorder.
Polistirex is a polymer that is bonded to the dextromethorphan that requires more time for the stomach to digest it, as it requires that an ion exchange reaction take place prior to its dissolution into the blood. Because of this, dextromethorphan polistirex takes considerably longer to absorb, resulting in more gradual and longer lasting ...
Dextromethorphan – An over-the-counter cough suppressant, as well as dissociative hallucinogen. Levomethorphan – A potent opioid analgesic that was never clinically developed; a prodrug of the powerful opioid agonist analgesic levorphanol (Levo-Dromoran). Racemethorphan is the racemic mixture of both of these stereoisomers. [2]
In Study 1 (GEMINI), a 6-week randomized controlled trial of dextromethorphan/bupropion versus placebo in people with major depressive disorder, scores on the Montgomery–Åsberg Depression Rating Scale (MADRS)—a scale with a range of 0 to 60 points—decreased with dextromethorphan/bupropion by 15.9 points from a baseline score of 33.6 ...
See Amino acid for the pK a values of all amino acid side chains inferred in such a way. There are also numerous experimental studies that have yielded such values, for example by use of NMR spectroscopy. The table below lists the model pK a values that are often used in a protein pK a calculation, and contains a third column based on protein ...
Ketamine’s antidepressant effects are part of what prompted researchers to explore other drugs that target glutamate—like the venerable cough suppressant dextromethorphan found in Robitussin ...
Coricidin, Coricidin 'D' (decongestant), or Coricidin HBP (for high blood pressure), is the name of an over-the-counter cough and cold drug containing dextromethorphan (a cough suppressant) and chlorpheniramine maleate (an antihistamine). [1] Introduced by Schering-Plough in 1949 as one of the first antihistamines, it is now owned by Bayer.
Quinidine prevents the metabolism of dextromethorphan into its active metabolite dextrorphan, which is a much more potent NMDA receptor antagonist but much less potent serotonin reuptake inhibitor than dextromethorphan. [6] [3] The mechanism of action of dextromethorphan/quinidine in the treatment of PBA is unknown. [3]