>>82278340
>I've been taking 100mg ritalin/methylphenidate almost daily for almost 3 months now. Is that dangerous?
It's addictive and can cause strain on the heart. Hopfully you're not that deep in and can quit without any bad withdrawals. 100mg is a lot, anon. But I'm not one to talk, I took 300mg today already (that's all I had so no redosing or addiction risk)