Doxycycline Hyclate Capsules/ taken every 12 hours....This works for me...I got a lot of back and chest acne and also on my shoulders...I dont know what to do before then I went to the dermatologist and gave me this prescription,,the only thing I dont like with this med. is that you need to take it 30 mins. before eating and most of the time, I feel stomach pain. but as for the benefits, It works very well