I'm on Vyvanse 50mg and feel like it's just not strong enough. I used to be on Adderall and also tried Adderall XR. I was given Adderall 20mg -3 times a day and it seemed to be an okay dosage amount for me. I'm trying to find that equivalent dose of Adderall to what I should take with the Vyvanse. The Vyvanse doesn't have as bad of a crash as the Add and seems like a smoother release of med throughout the day. I just want to know if anyone has a similar experience w/the meds I've described and what dose should Vyvanse compared to the Adderall be now that I'm on the Vyvanse. I do have a high tolerance for just about any medication I've ever taken so I just don't know what the norm or high dose is with this med. My doctor started me on 40mg. When I told him I didn't think it was strong enough; Compared to the years I was on Adderall, and knowing what my body should feel like, he only moved me up to 50mg once a day. He seems a little hesitant which is understandable considering it is a control substance. So please if anyone can help with their experiences w/it or opinions on what I could discuss w/the doctor to tell him how I feel I would greatly appreciate it! Thanks so much.