<prompt> Bisacodyl is:Bulk formingStool softnerStimulant purgativeOsmotic purgative  <response>: stimulant purgatives 1.diphenylmethane bisacodyl,sodium picosulfate 2. Anthraquinonessenna 3.5HT4 antagonisrprucalopride 4.fixed oilcastor oil ESSENTIALS OF MEDICAL PHARMACOLOGY SEVENTH EDITION KD TRIPATHI PG NO .672 