I'm no dr., withit, but just a heads' up..........my gd friend was on l-tyrosine (only that) -- 1000 mgs/day, I think -- mind you, this was in the mid/late '80's*......& she had to call 911 one evening. She had a very bad reaction to it (obviously) & dr's think she had a mild heart attack.

TC,

Des

* apparently a bunch of l-tyrosine @ this time was tainted or smthg & banned by FDA for a while.