I have a 120-160mg of oxycodone habbit a day. I was told 7 grams of kratom would be a good dose to start at. Would it be safe to mix 7 grams of kratom with my regular daily oxycodone dose? Would there be a additive effect? Is it safe to mix these 2 substances together? Lastly, would there be any additive or blocking effects or interactions that could occur?