I always ended up with taking kratom on top of what i wanted to taper down or substitute, when i had intention to use it as a substitution.
Lets be real, krstom can very addictive, reinforcing and u really never know how much active alkaloids or active additives u Ingest in the same dose as the last dose from different patch, potency can be very different event reinforcing effects range from powerful stimulation to powerful sedation ( i did it with alprazolam and smoked too strong weed, was couch-locked and unable to event pretend i am not under influence of something like heroin for 24 hours...Try to taper, u can stay on lower doses or do it completely, if u have covered your supply of your morphine and oxy, taper it down while using supplements mentioned by others. Kratom ( I ) wouldn't consider as a supplement, just another opioid, substitution.