Well, I finally decided to take it yesterday. 500 mg during the day, staged doses of 100-200 mg. Unfortunately, due to the abuse of Tramadol, the effects were not as strong as I thought.
I take them with an empty stomach. In half an hour I began to feel euphoria. I also felt more sociable and outgoing, wanting to do things (I cleaned my whole house LOL). I felt activated, but unlike coffee, I was not anxious or nervous. Tramadol, in other hand, makes me sedated (in doses above 400 mg).
Finally, at night, I mix it with my Tramadol (250 mg) and felt even more euphoria. The next morning, I still felt its effects.
The only negative is that its effects last less than Tramadol. But there were no nausea, no hallucinations. They were extended release pills and I had to chew them (hard as a rock).
I would say Tramadol / Tapentadol equivalence is 1:3
One question, there is some way to prevent Tramadol seizures without benzos or other pills??