"i suffer from acute muscular pains in my legs at night (one leg at time). may be due to medication which i have to take to control my cholesterol levels . i had to undergo bye pass ten years back. the side effects of pain in my legs means i have extremely disturbed sleep. i discovered that taking one ultracet tablet at night enables me to have a undisturbed sleep due to absence of pain. in my case one tablet works effectively for two nights.  in order to avoid getting addicted i normally take this drug only once a week - that&#039;s not too  regularly.  but whenever i have taken it has helped immensely without any side effect what so ever."