I think you are going in the wrong direction. The intestine has fingers that move the stool. If its pudding it can't do the job. Pudding and you have to strain. Consider eliminating the laxative, suppository, enema for a few days. Use some citracel or metamucal, follow directions, heaping tablespoon morning and one in afternoon and see if that thickens the pudding and less straing. I have been through this