"it works perfect for me to go to sleep. i only took half of the the tab. i  sleept the whole night, for 10 hours, but i had a hard time trying to wake up!! i felt dizzy and with migraine. i read everything about side effects, so i realized that i can&#039;t take this substance because i&#039;m taking eutirox because i have been diagnosed with hipotyroidism. it works but its not good for me."