Sinemet can cause a drop in blood pressure and therefore cause dizziness., A heart attack [a blocking of a coronary artery] is a different matter. People with Parkinson's have heart attacks about like everyone else. Will Johnnston A.P.D.A. DelMarVA Chapter Pres. 4049 Oakland School Road Salisbury MD 21804 USA 410-543-0110 ---------- From: Coleen Pettit <[log in to unmask]> To: Multiple recipients of list PARKINSN <[log in to unmask]> Subject: question, can too much Sinemet cause heartattack? Date: Monday, August 03, 1998 3:18 PM hi all, Does anyone know about this sort of thing...got me kinda worried.. I don't mean to alarm anyone...of course...but my friend that was taking 2 Sinemet 10/100 every four hours just recently went into the hospital for a knee replacement and while she was in the hospital she had a heart attack...the dr said she was taking too much sinemet, she also had given a pint of blood before the surgery which was last tuesday...and after giving the blood she was really dizzy and kept being dizzy for some time... I am concerned because my hubby is on Sinemet 50/200 twice a day and then reg sinemet 25/100 at nite...he seems fine but I will ask the dr just the same. gosh...we don't need any heart attacks do we!.......... i don't know all the details....my friend has restless legs not pd.....her legs are better now and all she is taking is quinine...not sinemet... Coleen :-) Oregon...Missing Links adoptees support group ~~a proud member of the Heart of Triad mail list**~~ [log in to unmask] 541-862-2226 http://www.barysoftware.com http://members.wbs.net/homepages/f/r/e/fredmom.html http://geocities.com/Heartland/Ridge/9923/adoption.html Http://members.tripod.com/~StateMailingLists/index.html