Ephedrexin contains the following:
1- Caffeine Anhydrous USP
2- Citrus Aurantium Extract (90% Synephrine)
3- Piper Nigrum 30,000 HU
4- L-Carnitine L-Tartrate
6- Garcinia Cambogia (HCA)
This pill is just a remix of 1 million other diet pills on the market. It even contains 1 of the Consumer reports 'dirty dozen' which is citrus aurantium which can cause heart attack or stroke. It also contains HCA which is potentially dangerous and has no proven benefit.
In other words? Avoid like the plague.
Here are a couple links/reviews.