McKesson Geri Care Bisacodyl Suppositories are a fast-acting stimulative laxatives. The suppositories are meant to be inserted into the rectal tube with the help of suppository inserters. These take around a few hours to get things flowing and are faster than regular laxatives that are taken through the mouth. The laxative syrups are meant to be taken by mouth like regular medicines and they work overnight to provide effective relief from constipation. The original flavor in particular is a Magnesium Hydroxide based saline laxative that has a pleasant flavor and an original formula unique to itself. not made with natural rubber latex.