Irregular Heartbeat / Atrial Arrhythmia
Berberine By Jacob Schor -
https://www.naturalmedicinejournal.com/journal/2012-12/clinical-applications-berberine The chemical berberine is found in a handful of plants widely used in botanical medical practice including Goldenseal (Hydrastis canadensis), Oregon grape (Berberis aquifolium), Barberry (Berberis vulgaris), and Chinese Goldthread (Coptis chinensis).
2 other berberine-containing plants that are familiar to practitioners of Chinese medicine are Phellodendron chinense and Phellodendron amurense...
Common Uses include:
1.    Antimicrobial action against bacteria, fungi, protozoa, viruses, helminthes,
       and Chlamydia
2.    Antagonism against the effects of cholera and E coli heat-stable enterotoxin
3.    Inhibition of intestinal ion secretion and of smooth muscle contraction
4.   Reduction of inflammation
5.    Stimulation of bile secretion and bilirubin discharge
Potential uses include:
1  Cancer
2. Diabetes
Goldenseal - https://www.webmd.com/vitamins/ai/ingredientmono-943/goldenseal
“Goldenseal is applied to the skin for rashes, ulcers, wound infections, itching, eczema, acne, dandruff, ringworm, herpes blisters, and cold sores. It is used as a mouthwash for sore gums and mouth…Goldenseal contains the chemical berberine, which might have effects against bacteria and fungi. For example, it can prevent the bacteria Escherichia coli (E. coli) from binding to urinary tract walls. Berberine also has properties that can lower blood pressure and improve irregular heartbeats.
In addition, early research suggests that berberine can lower blood sugar
and 'bad' low-density lipoprotein (LDL) cholesterol.”
Magnesium may help reduce the risk for metabolic syndrome or irregular heart rhythm. 8/2006 www.lef.org
Rath, Dr Matthias   Why Animals Don't Get Heart Attacks - But People Do    www.dr-rath-health-foundation.org  www.dr-rath-research.org  Over 30% of Dr Rath's patients taking vitamin C + vitamin B(1,2,3,5,6,12,biotin), coenzyme Q-10, carnitine, magnesium with calcium decreased irregular heartbeat. 
Dr Rath recommends a daily dose of approx 3g vitamin C, 3g lysine + 1.5g proline for heart attack prevention. 
For heart palpitations, rule out heart attack with EKG.  Rule out allergies, hot flashes, emotional distress, and thyroid disease.  Consider taking 50 mg vitamin B1 AM with food, 60 mg CoQ10 to reduce arrhythmia, plus 250 mg hawthorn to increase heart blood flow and heart rate.3/04 Jamison Starbuck ND Bottom Line Health   www.bottomlinesecrets.com   askjs@boardroom.com

DANGERS
Drugs may create irregular heart-rhythms such as torsades de pointes (twisting peaks). Several antibiotics, most antipsychotics, methadone, and even those meds such as amiodareone, intended to contraol heart-rhythm irregularities, can cause torsades.  These drugs may cause a precursor condition called long QT, which is visible on an ECG.   www.torsades.org 10/21/2006 ron.winslow@wsj.com