Negative side effects from concerta - have you switched to something else?

Lots of choices. Not exactly sure of the question. Concerta is a form of extended-release methylphenidate (mph) and works well for many but not all. There are other types of mph formulations plus amphetamine formulations, and several non-stimulants. An excellent listing of fda-endorsed choices can be found at: www.Adhdmedicationguide.Com.