[epgui]

IR (instant release) is the opposite of XR (extended release). I said and meant XR. I don’t even think IR should be used anymore, except maybe in super niche situations (I’m not even sure if I can think of any situation where it makes much sense… maybe narcolepsy?).

XR is obviously preferable to IR, but amphetamines have been falling out of favour over the years (it’s a slow trend). Vyvanse, NSRIs and even SSRIs tend to be regarded more and more favourably compared to amphetamines (Adderall) and methylphenidate (Ritalin).

(Disclaimer: I myself take Adderall XR 10mg as prescribed, so I have the opposite of a conflict of interest in this context.)