♚ **Vitamin B17, because of its hydrocyanic acid, maintains normal B.P. Barley grass capsules are cheap. Take 10 per day to address hypertension. (There's no known toxicity for B vitamins. They're water soluble and they will turn ***** amber.) B17 is the anti-tumor/anti-cancer vitamin known as Laetrile, when synthesized from apricot pips.