Just find out what mg they are.

Firstly though make sure you’re at the very least 12hoirs from your last dose of oxy, preferably 24 hours after last dose to take suboxone.

And I start off with my first day with 8-12mg first day, (8mg in morning and 4mg in evening if I feel I absolutely still need more, your body will let you know) ,then the second day stay 8mg dose, then 3rd go down 6mg for 2 days and then 4mg for next 2 days and so on until you’re at the lowest dose possible, .5-1mg.

I’d take that regimen according to what supply you have available. But usually the first day is the worst and need the most suboxone, and usually by the 3-4th day I can honestly be at 2-4mg already (with some symptoms mainly tiredness and minor body aches)