Isopropylphenidate (also known as IPH and IPPD) is a piperidine based stimulant drug, closely related to methylphenidate, but with the methyl ester replaced by an isopropyl ester. It has similar effects to methylphenidate but with a longer duration of action,[1][2] and was banned in the UK as a Temporary Class Drug from April 2015 following its unapproved sale as a designer drug.[3]
It has been researched as potential methylphenidate replacement for ADHD and narcolepsy, because of fewer side effects.[4][2]
^ abUS application 20120245201, Markowitz JS, Patrick KS, Zhu H, "Isopropylphenidate for Treatment of Attention-Deficit/Hyperactivity Disorder and Fatigue-Related Disorders and Conditions", published 2012-09-27
^Florence Levy (July 2014). "Applications of pharmacogenetics in children with attention-deficit/hyperactivity disorder". Pharmgenomics Pers Med: 349–356.