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A 49-year-old member asked:

How much time does it take for potassium chloride to stop the heart?

1 doctor answer1 doctor weighed in
Dr. Bennett Werner
Cardiology 44 years experience
Depends: Depends on the dose, the route of administration, and the rate of administration. During executions, it seems to take 15-30 minutes as best as I can determine it (I've never witnessed one I'm glad to say). That time frame would make sense to me. Theoretically, if you injected a massive amt of potassium directly into the heart, death might occur instantly.

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Last updated Mar 17, 2018

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