I presume you were unhappy with the emotional blunting/zombie feeling/residual stimulation of Ritalin. I've used a combination of 4f-mph + ipph (which is not p

I presume you were unhappy with the emotional blunting/zombie feeling/residual stimulation of Ritalin. I've used a combination of 4f-mph + ipph (which is not perfect because 4f-mph has a much, much longer half life) and it lead me to believe that playing with the ratios of stereoisomers of methylpheniate and adding other derivatives (like isopropylphenidate) to change the dopamine/norepinephrine reuptake inhibition would make a much better drug in my case. The calm and deep focus + the lack of any side effects was amazing; I'm not using anymore because 4f-mph has very little long-term human studies + I'm a parent now and the thought of police tearning down my door because I've ordere 1 gram of a chemical over the internet is not very peasant. But I do wish for a future where personalized drugs and therapies were a thing instead of demonizing drugs.