"i have rheumatoid arthritis, an auto-immune disease. valerian was recommended to me for insomnia and so i took one. because of my compromised auto-immune system, the pill had the opposite effect. i felt as if i had been given epinephrine and was in a &#039;run&#039; mode all night long. by morning, i was exhausted and my head felt like it was about to explode. 
people with auto-immune disorder should definitely  stay away from this herbal pill."