<unk>  is closely related on a structural level to the compounds methylphenidate and pipradrol, all three of which share a similar pharmacological action. Of these three piperidines,<unk>  has the longest elimination half-life, as it is a highly lipophilic molecule lacking polar functional groups that are typically targeted by metabolic enzymes, giving it an extremely long duration of action when compared to most psychostimulants. Methylphenidate, on the other hand, is a short-acting compound, as it possesses a methyl-ester moiety that is easily cleaved, forming a highly polar acid group, while pipradrol is intermediate in duration, possessing a hydroxyl group which can be conjugated (e.g. with glucuronide) to increase its hydrophilicity and facilitate excretion, but no easily metabolized groups.
Desoxypipradrol
Nandrolone phenylpropionate
Drostanolone propionate
Nandrolone furylpropionate
Ibotenic acid
Norfenefrine
Nandrolone sulfate
Acetomepregenol