Fleet is the number one doctor-recommended brand of enemas and suppositories. Get relief in as little as 15 minutes with Fleet Laxative Glycerin Suppositories. These laxatives for constipation relief work with your body to gently unblock your system to relieve occasional constipation. ProVoice Data 2/1/22 to 1/31/23; IQVIA Survey, 5/1/23 to 4/30/24 and TABS, L52W thru 5/19/24,