in reply to Riley S. Faelan

There's a genuine trend of Big Pharma putting the Grouch'os mask onto amphetamine, hyping the result up as a next big thing that don't even "need" to be a controlled substance, getting a patent, and selling the "new" thing under a quickly invoked controlled substances regime for twenty more years. Methylphenidate is not one of these molecules. It was discovered in the 1940s, relatively independently from amphetamine chemistry, and was popularised as a medicine in its own right, in some parts even as an "ADD" medicine before amphetamine's usability for this became known. A classic story of a chemist making a molecule, trying it out on his wife, and naming it after her.
This entry was edited (today, 12:13 PM)
in reply to Riley S. Faelan

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in reply to Sarah Brown

FWIW, I'm pretty sure Elvanse's duration is dose-dependent. My last uptitration step was mostly to make sure that my evenings would be reliably covered when I take it in the morning.

AFAIU, its pharmacokinetic curve has three main components: the cleavage of the lysine dimesylate, which probably typically takes just one to two hours; the exponential decay curve of renal clearance after the amphetamine has become free in blood and gotten stocked up by the synapses, and some sort of effectiveness threshold. The exponential decay curve interacts with the effectiveness threshold in ways that are non-linear and can be non-intuitive to one who hasn't dabbled in calculus. But both components vary between people.

This entry was edited (today, 1:14 PM)
in reply to Riley S. Faelan