Can you mix t3 and suboxone together?

No, you cannot. Tylenol 3's (T3) contains the opiate codeine, and Suboxone contains buprenorphine. Buprenorphine is way stronger than codeine and binds to the receptors in your brain very easily. If you took them at the same time, the Buprenorphine would negate the effects of the codeine.

If you took the codeine and then took the Suboxone soon after, there is a chance you will get very, very sick. If codeine is already bound to your brain's receptors, the Suboxone will come and kick the codeine off the receptors since it is very affinitive and strong. In doing this, it causes precipitated withdrawals, which is a strong feeling of typical opiate withdrawals and has symptoms that can last over 24 hours. It is very uncomfortable and sometimes painful. Don't do it!