I just received "A patient's guide to Parkinson's Disease and Sinemet CR" (A Cornerstore Program sponsored ty DuPont Pharma). The booklet states: "Do not chew or crush. A tablet of Sinement CR should never be crushed or chewed since this destroys its ability to release the drug slowly. You may break a table of Sinemet CR 50-200 in half if your doctor tells you to do so. Never halve a tablet of Sinemet CR 25-100." Kathy Barras (cg for mom, Florence, 74/Sept 97) [log in to unmask]