Fleet liquid glycerin suppositories are pre-filled, squeezable units that deliver liquid glycerin directly into the rectum to relieve constipation. Unlike solid suppositories that need to dissolve, the liquid format works faster, typically producing a bowel movement within 15 to 60 minutes. The process is straightforward once you know the correct positioning and technique.
How Liquid Glycerin Suppositories Differ From Solid Ones
A solid glycerin suppository is a small, bullet-shaped insert that you push into the rectum and wait for it to melt. Fleet’s liquid version comes as a small, soft squeeze bulb with a pre-lubricated tip and an orange protective shield. You squeeze the bulb to deliver the glycerin as a liquid, which means there’s no waiting for it to dissolve and the process takes only a few seconds. Each unit is single-use and disposable.
Glycerin works by drawing water into the lower intestine through osmosis. This softens the stool and gently stimulates the rectal muscles to contract, triggering a bowel movement. Because the liquid coats the rectal lining immediately, it tends to work on the faster end of that 15-to-60-minute window.
Before You Start
Wash your hands thoroughly with soap and water. Check the unit to make sure the orange protective shield is intact and the packaging isn’t damaged or leaking. Keep the unit upright so the liquid stays in the bulb. That’s all the preparation needed. Unlike solid suppositories, you don’t need to refrigerate or wet the tip with cold water beforehand, since the applicator comes pre-lubricated.
Choosing a Position
You have two options, and either works well. Choose whichever feels more comfortable.
- Left-side position: Lie on your left side with your right knee bent upward and your arms resting comfortably. This is the most common choice and tends to feel the least awkward.
- Knee-chest position: Kneel on a soft surface, then lower your head and chest forward until the left side of your face rests on the surface. Fold your left arm comfortably underneath you. This position uses gravity to help the liquid reach further into the lower bowel.
Step-by-Step Administration
Hold the unit upright with the tip pointing up. Grasp the bulb with the fingers of one hand. With the other hand, grip the orange protective shield and pull it off gently. Do not skip this step: the shield must be removed before insertion.
With steady pressure, insert the tip into the rectum using a slight side-to-side movement. Aim the tip toward your navel rather than straight back. This follows the natural curve of the rectum and makes insertion smoother. Do not force the tip. If you meet resistance, try bearing down as though you’re having a bowel movement. This relaxes the muscles around the anus and usually makes insertion easy.
Once the tip is fully inserted, squeeze the bulb until nearly all the liquid is expelled. Keep squeezing as you withdraw the tip so that the liquid stays inside rather than being pulled back into the bulb. Then remove the tip and discard the entire unit. It’s single-use only. Wash your hands again afterward.
What to Expect Afterward
Try to remain lying down for a few minutes after administration. You’ll likely feel a mild urge to have a bowel movement within 15 minutes, though it can take up to an hour for some people. Some mild cramping or a warm sensation in the rectal area is normal and usually passes quickly. Rectal burning or irritation can occur but is generally brief.
If you don’t have a bowel movement within an hour, don’t immediately use a second dose. One suppository per 24-hour period is the standard recommendation for adults and children 6 and older.
Dosing for Children
Fleet makes a pediatric version (sold as Pedia-Lax Liquid Glycerin Suppositories) with a smaller volume designed for younger children. The dosing breaks down by age:
- Children 2 to under 6 years: One pediatric suppository per day.
- Children under 2 years: Do not use without a doctor’s guidance.
- Children 6 and older: One adult-size suppository per day.
For infants and toddlers under 2, a half to one pediatric suppository once daily for up to 3 days is sometimes used under medical supervision, but this isn’t something to try on your own. The technique for children is the same: left-side positioning tends to work best, and having the child draw their knees toward their chest can help relax the area.
Tips for Easier Use
If you’re using this for the first time, the left-side position is generally the easiest to manage on your own. The side-to-side motion during insertion matters more than you might expect. It prevents the tip from catching on tissue and makes the whole process smoother. Breathing slowly and deliberately also helps relax the pelvic floor muscles.
If you experience stinging during or after use, it usually means the rectal tissue is slightly irritated, possibly from the constipation itself. This is temporary. Persistent pain, bleeding, or no results after using the product for more than a few days in a row signals that something else may be going on and warrants a conversation with a healthcare provider.
Store the suppositories at room temperature and check the expiration date on the box. A damaged or leaking unit should be discarded rather than used, since the pre-lubricated tip may no longer be sanitary.