Rite Aid Laxative Glycerin Suppositories are here to help you get through any bout of constipation. It often works in minutes for gentle, effective. Just one suppository is needed to produce a bowel movement within minutes. Compare to the active ingredient in Fleet Glycerin Suppositories; For fast, gentle of occasional constipation; Often works in minutes for gentle, effective of constipation; This item may be eligible for FSA and HSA reimbursement.