For maximum effect, it is best to take 50 mg of vitamin B-6 at the same time, as well as niacin, 500 mg per day, and one gram of vitamin
B-6 is particularly important in regulating the absorption, metabolism, and utilization of amino acids.
Caution: With both DLPA and L-tyrosine (described below.), you need to be watchful for increased blood pressure, headaches, or insomnia. These side effects are indications that an excessive stimulation of the nervous system has occurred.