Yes the liquid form was deprenyl citrate - I think IAS still sells it although it may be from a different manufacturer cause, as mentioned, the FDA busted that guy (Discovery Experimental brand out of FL) - by the way that was the brand I liked the best too. I found it to be effective as an anti-depressant and pro-sexual, but dosage is critical. The amount needed varies with individual and age, the liquid form was really nice since you could precisely titrate the dose. Supposedly, they say the liquid citrate form was more bio-active somehow. I am taking it in a different compounded formula now, as a sublingual, but it does not seem to be as effective. Although I still like it.