Heres the description from AF.
DESCRIPTION:
The original NYC. These bottles contain 90 tablets of the original fat burning formulation of Norephedrine, Caffeine and Yohimbine hcl. This formulation was developed as a replacement/alternative to the Ephedrine and Caffeine stack. The NYC formulation is less taxing on the central nervous system and more thermogenic, especially in women through the addition of yohimbine hcl. NYC provides a more even and less "jittery" stimulatory effect and is as, if not more, thermogenic than EC. These bottles of NYC are a private run of the highest quality of which Anabolic Fitness has the remaining stock.
Each tablet is cross scored, allowing you to take 1/2 or even 1/4 doses. This comes in handy if you have a low tolerance to stimulants or if you would like to take smaller more frequent doses. Each tablet, made from the finest pharmaceutical grade chemicals available.
Contains: 25mg of norephedrine, 100mg of caffeine and 2.7mg of yohimbine hcl.