My psychiatrist will be on vacation this week and I've just run out of my normally prescribed 5mg Ritalin for ADHD-I. I have a lot of deadlines and things due this week and I really can't afford not to be on one of them. I was prescribed Adderall 5mg at first and then Adderall XR 10mg after a while, so I still have enough left over in cases like this. I was wondering whether there would be any issues with taking one stimulant one day and taking the other on another day, or whether I should wait a day or two? Thank you.