User:Mr. Ibrahem/Quinidine

Quinidine is a medication used to treat supraventricular tachycardia, ventricular arrhythmia, and malaria. Use in none life threatening arrhythmia is associated with an increased risk of death. It is taken by mouth or by injection into a vein.

Common side effects include diarrhea, nausea, and lightheadedness. Other side effects may include QT prolongation and allergic reactions. There is tentative evidence that use in pregnancy is relatively safe. It is a class I antiarrhythmic agent (Ia) and decreases the speed electrical signals travel through the heart.

Quinidine was approved for medical use in the United States in 1950. It is not available in the United States or United Kingdom as of 2019. It is a stereoisomer of quinine, originally made from the bark of the cinchona tree.