Do you take suboxone everyday for maintenance? At what dose? I don't know for sure but kratom may not do a lot to someone who's been maintained on strong opioids like buprenorphine or methadone.
I'm on methadone and I can't feel codeine or tramadol at any dose (at least not at a dose unlikely to cause seizures for tramadol).
And I would imagine kratom would be similar unless you took a big tolerance bteak first