Question: how often to take adderall 20 mg?
Answer: Both Adderall and Adderall XR can be taken with or without food. Adderall: Starting doses will vary, but doctors typically start adults and children at 5 mg once or twice daily. Adderall XR: Starting doses will vary, but doctors typically start adults at 20 mg once daily, and children at 10 mg once daily.