"i have been on tapentadol for about 2 months as well as taking numerous amounts of other medicines.  i have found that it does help with my lower back pain but i am struggling with some side effects like constantly feeling tired and lack of energy.  i have found that to help sleep at night i take endep. this helps with sleep but when i first took it i had bad nightmares but they have gone now.  before tapentadol i was in constant pain ranging from 10 to an 8 my pain levels have now dropped to a 4 to 5 on bad days and good days 2 to a 4 which for me is worth battling with some small side effects."