@tomfam18, are you referring to dillies? If so, I doubt you will be able to go from 4mg to kratom. It's just not that powerful, and not exactly like an opi, although it can definitely be helpful with WD symptoms, as I can personally attest, even for us old folks, lol.
There are some good recipes and even some discussion here on WD help. I do think Kratom can help. In your case, try a red vein Indo to start, or go to one of the vendors here for suggestions.
Is this a daily dose, or multiple times a day? I would start tapering asap, if you know you're going to be out. The lower you can get, the easier it will be. I promise. If you start cutting down, your meds will last longer and you can try kratom if you start feeling wds. Don't expect too much at first, but it can be a good help. It can also become a new problem, if misused or used daily for a long time.
Kratom, clons and zans are my go to for your situation. I also use poppy seed tea occasionally, which you may find helpful.
Let me know if I can help, or just listen. Good luck.