Suggested Usage: Adults take 2-4 capsules (on an empty stomach) once or twice a day. Don’t take past 3 p.m. The production of Norepinephrine in the hypothalamus is a 2 step process. The amino acid L-Phenylalanine is first converted into Tyrosine. The amino acid Tyrosine is then converted into Norepinephrine. In extreme cases L-Tyrosine is supplemented to increase Norepinephrine and Dopamine. However, if the levels of Tyrosine are not low, this can cause headaches. This is why L-Phenylalanine replacement therapy is usually recommend first. Supplementing with L-Phenylalanine Start with 1,000mg twice a day taken on an empty stomach. If needed increase up to 4,000mg twice a day. If you experience a rapid heartbeat, agitation or hyperactivity, reduce or stop taking L-phenylalanine. L-glutamine increases the effectiveness of both DL and L- phenylalanine. Take 500mg of L-glutamine 1-2 a day on an empty stomach. Both DL and L-phenylalanine can increase blood pressure. If you already have high blood pressure, consult your doctor before taking either form of phenylalanine. Phenylalanine can be stimulating and shouldn’t be taken past 3 in the afternoon. |