Recommended Dosage--The recommended dosage for CFIDS and immunodeficiencies is 500 mg. twice a day.

This is an essential amino acid with anti-viral properties. It has been reported as a beneficial treatment for herpetic infections such as Herpes Simplex (fever blisters) and Shingles.

You should know, however, that L-Lysine has been reported to raise total cholesterol levels when taken on a daily basis. On the otherhand, since many viruses like to reactivate during times of fatigue, it's recommended that you take it anyway because of its anti-viral properties. Just make sure to watch your cholesterol levels.