View Full Version : Dexedrine Spansules to Vyvanse

05-28-08, 10:03 AM
I have been taking approximately 40-60 mg Dexedrine per day (20 mg 2-3x a day, as I need it) for about 6 years now. My doctor just gave me samples for the 30-50-70 mgs of Vyvanse. What is the equivalent dosage to what I am now taking for Dexedrine? Should I take a 50 mg once in the am and then again in late afternoon? Thanks.