[dns_snek]

That's not the case for lisdex nor Concerta methylphenidate. Some generics work that way and they're generally regarded as being worse than Concerta.

The benefit is that the medication automatically produces a smooth effects profile allowing you to live your life without timing medication to perfection.

A pronounced come-up and crash is a risk factor for abuse and addiction, so smoothing or removing the peaks and valleys is important.