Heart Attack & Stroke: A heaping tablespoon of cayenne tincture (or extract) in a glass of warm water, or 10 dropperfuls (half oz.)is the treatment/dosage needed for someone having a heart attack or a stroke. If drinking a glass of fluid is not possible, apply cayenne drops directly into the mouth. This is where a more powerful extract like habanero could come in handy. The higher Scoville units of around 100,000 to 400,000 are ideal. https://www.youtube.com/watch?v=d4FBNLWY6bc