Mixing Ritalin (methylphenidate) and alcohol is dangerous and can lead to serious side effects, including high blood pressure, anxiety, drowsiness, and even fatal outcomes.
I’m not a doctor – but I’m pretty sure alcohol alone can also cause all of these.
You’ll be fine – at some point in time I’m sure there was a fleet of frat boys taking Ritalin and drinking every day. If you’re an alcoholic with preexisting heart conditions – you probably shouldn’t be on Ritalin already.