Dad was having severe constipation, up to 7 days. Even with lachulose twice a day and prune juice. No results. Even slow results with using suppository. Neurologist just stopped sinemet to see if that helps. It seems to have helped but now he has been unable to urinate and now has a catheter last couple of days. Urine test shows no infection. Waiting to get appointment with urologist now. Anyone else having urination problems?