Yes, it is.  The two substances in RICE MIND which are able to maintain blood pressure and prevent blood pressure from augmenting are Serine and Serinium.
Serine is the amino acid which controls cholesterol level in the blood vessel and helps with expansion of blood vessels and better circulation of blood so that oxygen can be better conducted into the body,
Serinium helps to resist free radicals, assists heart in functioning better and not hard.  Moreover it produces Prostaglandin to prevent high blood pressure.