I recently began taking LarreaRx in the morning along with NAC, and cysteine. I also began taking chaparral from Arizona (something or another company). I gradually worked my way up to 4 capsules twice a day along with 4 Carnivora twice a day and doing better than i have in quite some time. I also take Lyposperic Vit C by LivOn Labs. I am sick with Lyme disease and I think every known and unknown virus. Fibro, CFIDS, etc.... The addition of the chaparral and Carnivora has helped me considerably! I also have a complex cyst on my thyroid and it has been acting up and caused some constipation problems so I decided to quit taking the pills until I could get things moving again. No one wants the retention and reabsorption of toxins. Anyway, since I quit I started feeling bad again, no energy, depressed, etc.. So I have started back 1 capsule at a time and will work my way back up, but I have been very pleased with the results of taking Larrea and Carnivora. I have a friend who recently had her first outbreak of shingles that I am going to recommend this to her. I really am happy and grateful to have found this forum and the info posted on LarreaRx and chaparral! Thanks!