Quinidine is

A. Obtained from cinchona

B. O stereoisomer of quinine

C. An antiarrhythmic used an cardiac arrhythmia

D. All

Answer: Option D

Solution(By Examveda Team)

Quinidine is:

Obtained from cinchona: Quinidine is derived from the bark of the cinchona tree.

O stereoisomer of quinine: Quinidine is an optical isomer of quinine, meaning they have the same molecular formula but different spatial arrangements.

An antiarrhythmic used in cardiac arrhythmia: Quinidine is used as an antiarrhythmic agent to treat cardiac arrhythmias.

Therefore, Quinidine = All of the above.