I tried it and here is how it went.
Well at first I had a warm feeling all over my body, more pleasant then hurting. Still having this pleasant feeling I started to feel pressure in my teeth and my face. The pain wasn't that bad but it still tingled a bit. But the worst pain I felt during the whole dose was somewhat around the middle. This pain felt like a small needle digging in my skin around my stomach area. After that went away Strangely enough I still had that pleasant feeling. At the last 10% My face went numb and that is how the dose ended.