"i was originally prescribed this for a foot injury.. not one for pain medicines i reluctantly take these once in a awhile. however, the last couple of times i have taken them at night due to body aches and pains, it killed the pain but my sleep was filled with vivid dreams, and i could not reach the deep sleep. i woke up with a headache, hangover feeling, and totally drained throughout the next day - not worth it in my opinion with the side effects i am experiencing. use with caution."