This pain with resistance may indicate that tendonitis is a cause of your problem. Stiffness- Many tendons course through your body in a fibrous sheath, and when inflammation and swelling occurs, this flossing in the sheath becomes limited. This occurs with tendonitis, so stiffness after a period of rest may occur.
Concerta and Adderall are the brand names of generic medications. The generic form of Concerta is methylphenidate. Adderall is a combination of two generic drugs: amphetamine and dextroamphetamine. A side-by-side comparison of these two ADHD medications shows that theyâre similar in many ways. However, there are some differences.
History of Adderall. 1  Adderall came from the once popular weight loss drug Obetrol. 2  Adderall in produced in two different forms. 3  It comes in XR (extended Released) Half of the dose gets released immediately and the other half gets released 6 hours later.