urgent I have just found out they are no longer making sr Ritalin 20mg and I have been taking 8tablets every morning for 40 years it was lowered 10 years ago from 10 tablets but I need to know what medication is as effective as the sr Ritalin which lasted about 8 hours for me I need to know before if possible 1045 am today when my doctor and I discuss this I want to know my options going into this meeting please