Belbucca initiation in opioid tolerant

I have no experience with Belbucca. Used Butrans a few times and Suboxone quite a few times when it first became available. Reading the product literature they suggest tapering opioid naive patient down to 30 MED and then dosing based upon PRE-TAPER dose of opioid. Is that really how people are doing this. I'm thinking about it in a refugee left stranded on 100mg Oxycodone/day.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pain Medicine Source Type: forums