Does anyone know the implecations (or tolls your body suffers) by taking Hydrocodone (w/o acetamedaphine) in increased dosage? I am currently @ 30mg x 5 a day for chronic back pain.

Does this cause liver damage? Kidney? Any known studies of long term effects? I have been on this for 3 years now and there seems no other options from the pain. I have tried to see what it's like without the pills and the pain is very intense.

Thanks!
John