Hello John, I am new too on the forum.My grandpa suffers from Parkinson too.He has been seeing the same doctor for many years. He feels dizzy, has blurred vision, and has head aches. My parents and I are concerned about side effects of his medication; or, side effects of combined medications. He is currently on Dynacirc and we were wondering whether these could be due to the fact that he is taking this medication with other that are contributing to his depression. I would like to know if Dynacirc can be taken alongside Lisinopril,Darvacet and Lorazapam. I tried a google serach to see which medication cannot be taken with Dynacirc but on the link I got(http://www.drugdelivery.ca/s31055-s-DYNACIRC.aspx) nothing is mentioned about it???If anyone has a suggestion or information on what I am looking for they are the most welcome...