What is quinidine gluconate injection?

Quinidine gluconate is the injectable form of the gluconate salt of quinidine. Quinidine sulfate is an oral extended release tablet and is not available as an injection. Quinidine gluconate injection is most often used to treat irregular heartbeats, known as arrhythmia, but may be used to treat malaria caused by susceptible organisms. It is called a Type I antiarrhythmic drug, and works by altering the movement of sodium in and out of the heart cells, which affects the speed and frequency of the heartbeat.

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