People keep finding my blogs by searching for things like "Can you eat a fentanyl patch?" 

NO!

Eating a fentanyl patch has a VERY good chance of killing you.  The patches are designed to deliver fentanyl at a constant amount over a period of three days.  Eating it will give you the full dose all at once. 

I have personally seen autopsy reports and death certificates from people who have eaten fentanyl patches.  One poor guy was only 18 years old and experimenting with friends.  He died within hours of eating the patch.

Please, if you're considering eating a fentanyl patch, or considering injecting the fentanyl gel – DON'T.