Overmedicated on Brixadi. Anyone advice?

I got my first Brixadi injection four days ago, the weekly version. I had been on about 4mg of Suboxone and we were going to add 4mg of Suboxone to the Brixadi injection over the course of a week, then switch to the monthly Sublocade injection. However, I have felt extremely overmedicated on the Brixadi, napping for hours, unable to get off the couch. Feeling pretty crappy. With this reaction, my doctor is now reluctant to give me Sublocade. And I want desperately to get off this stuff. Anyone have a similar experience, or some insight? Thanks much.