Ken wrote: ? I know my mother will speak to the neurologist about the > SInimet, but I thought I would ask the real experts here for an opinion! > thanks in advance for any help on this situation. Sinemet was probably the culprit in your father's confusion. I'm not familiar with Heparin ever having an effect on behavior, even in cases where confusion is the result of a stroke. Antibiotics have not be known to have a positive impact on confusion either (except in cases of encephalitis or meningitis). ------ Mary Ann Ryan RN