Dude, Im very sorry as I meant to reply to this one earlier as I know it is time-sensitive. The only way to know what will control your withdrawal would be to dose and use the effects of that dose as a benchmark or approximation.
There are many variables at play when dealing with Opioid conversion beyond just the dose. You will ultimatelty be the best judge in this situation.
The safest thing to do in my opinion would be to dose 30mg every half hour or so. If you are at all concerned that you have taken too much then please call Never Use Alone.
(800) 484-3731
These guys are great. You call and explain your situation as best you can. They will call you back at some point and if you do not answer, they send an ambulance.