Extract F from patches? DSMO?

[phersper]

I have some Fentanyl patches and each contains 37.5mg (150 mcg/h) pure Fentanyl. I was wondering how many of them are they necessary to make it lethal.
Does anybody know if is there a way to extract the fent from the patch? Is DMSO poured on the skin really gonna make the patch that more effective?

 

[DoubleUp8]

I knew addicts that would chew patches and swallow em to get high.