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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.
Dextromethorphan (30 mg/30 mL) (cough suppressant) Doxylamine succinate (12.5 mg/30 mL) (antihistamine/hypnotic) Alcohol (10% by volume) The LiquiCap capsule version has the following active ingredients per pill, half the recommended adult dose: Acetaminophen (325 mg/pill) (pain reliever/fever reducer) Dextromethorphan (15 mg/pill) (cough ...
Dextromethorphan's effects have been divided into four plateaus. [14] The first plateau (1.5 to 2.5 mg per kg body weight) is described as having euphoria, auditory changes, mild stimulation, and change in perception of gravity. The second plateau (2.5 to 7.5 mg/kg) causes intense euphoria, vivid imagination, and closed-eye hallucinations.
Codeine linctus of 15 mg per 5 ml is also available at some pharmacies, although a purchaser would have to request it specifically from the pharmacist. [ citation needed ] Under the Misuse of Drugs Act 1971 codeine is a Class B controlled substance or a Class A drug when prepared for injection.
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]
Dextromethorphan/bupropion has less activity as an NMDA receptor antagonist than dextromethorphan alone. [11] This is because bupropion is a potent CYP2D6 inhibitor and prevents the bioactivation of dextromethorphan into dextrorphan , a much more potent NMDA receptor antagonist and weaker serotonin reuptake inhibitor than dextromethorphan ...
A study found it to bind to the cough center in the medulla oblongata, more specifically the dextromethorphan-binding site in guinea pig brain with high affinity. [3] As a 2-(2-diethylaminoethoxy)ethyl ester, it is chemically related to oxeladin and pentoxyverine, which are in the same class. (Oxeladin has an additional ethyl group in its ...
Dextrorphan (DXO) is a psychoactive drug of the morphinan class which acts as an antitussive or cough suppressant and in high doses a dissociative hallucinogen.It is the dextrorotatory enantiomer of racemorphan; the levorotatory enantiomer is levorphanol.