Re Fentanyl patches

[Kam59]

Is there any info on how to extract F from these ?

 

[Saed]

First result on Google is this
The Fentanyl Patch Boil‐Up – A Novel Method of Opioid Abuse

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onlinelibrary.wiley.com

Apologies for the cookie error. No idea why that happened.

 

[Aap]

Sure, just understand why you want to. If you are swallowing it, oral bioavailability isn't great. I don't recall off the top of my head about decomposition at temperature. There are certainly ways to speed absorption from the patches themselves.