For me it’s ~300mg caffeine to almost be as good as 10mg Ritalin, but I have to re-dose the caffeine often. Think a gram or more a day. Both have an impact on

For me it’s ~300mg caffeine to almost be as good as 10mg Ritalin, but I have to re-dose the caffeine often. Think a gram or more a day. Both have an impact on cardiovascular health, but my impression is that Ritalin and the like are much safer than what people self-medicate with.