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Quinidine is a D-isomer of quinine present in the bark of the Cinchona tree and similar plant species. This alkaloid was first described in 1848 and has a long history as an antiarrhythmic medication.[A38016,A250050] Quinidine is considered the first antiarrhythmic drug (class Ia) and is moderately efficacious in the acute...
Approved
Investigational
Matched Categories: … Compounds used in a research, industrial, or household setting …
Dextromethorphan is a levorphanol derivative and codeine analog commonly used as a cough suppressant and also a drug of abuse. Although similar in structure to other opioids, it has minimal interaction with opioid receptors. Dextromethorphan was granted FDA approval before 3 December 1957.[A215412,L14997]
Approved
Matched Categories: … Heterocyclic Compounds with 4 or More Rings …
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