"take it on an empty stomach, or it won&#039;t work. i have terrible insomnia and have been on it long-term. it still works after 15 years. it had some initial side effects, but they went away after a few months. it works very well, but i gave it eight stars only because you have to take on an empty stomach. if i eat a late dinner, i can count on it not working. otherwise, it&#039;s the only medication that has helped me sleep. i take 15-20 mg per night."