Long time Suboxone user having some health problems. On 12mg for years. Kidney function starting to get bad, of course I wasnt told about it until I saw gfr level at 60 and the last gfr at 80. Dont think 60 was accurate but GFR is. Does Suboxone damage kidneys, if so why doesnt anyone tell us this as I would have never taken this crap. In the last 2 years i have been diagnosed with low test, diabetes 2, and now kidney probs.