Tachycardia Remedies and Natural Cures

My mother had an irregular and rapid heart beat. Sometimes at night she would call me to put a "pinch" of Cayenne Pepper from the spice cabinet, in hot milk to calm her heart. I have insomnia and Lupus, and have started using a pinch of Cayenne in hot milk.(powder) Please tell me how much could be used? Also, if I get the Cayenne from a health store in liquid form, how much would be safe for use every night. Thank you.

Don't forget adrenal fatigue. I had heart palpitations and tacchycardic states for several months before finally being diagnosed with adrenal fatigue by a homeopathic doc (western medicine docs don't recognize this condition). There are tons of natural remedies, just google adrenal fatigue.