[nonseqseq]

Indeed. Ritalin and benzedrine. Originally prescribed for depression apparently. Notably his output was quite high adjusting for his age at the time.

https://en.wikipedia.org/wiki/Paul_Erd%C5%91s#Personality

https://amphetamines.com/paul-erdos/

[pmiller2]

> Ritalin and benzedrine.

Neither of which, one should point out, is actually "meth," not that that detracts from the GP comment's point. Prescription methamphetamine is called Desoxyn. Ritalin is not even technically an amphetamine. :P

https://en.wikipedia.org/wiki/Methamphetamine#Medical

https://en.wikipedia.org/wiki/Methylphenidate