The pharmacological effects of arillus longan are as follows: (1) Bacteriostasis: The aqueous solution of arillus longan has inhibitory effects on Microsporum ampelopsis and Shigella dysenteriae.

(2) Anti-cancer effect: In vitro test, the inhibition rate of some cancer diseases reached 90%.

Longan is sweet and warm, so it is not suitable for people with phlegm and fire.