Saline enema (Fleet Enema) is an over-the-counter (OTC) enema that's used to relieve constipation in children and adults. It's an osmotic laxative that works to help make your stool softer so it's easier to pass. This medication is inserted into the rectum, and it works very fast (usually within 2 to 15 minutes) to cause a bowel movement. Side effects can include stomach pain and discomfort of the rectal area. There are different types of "Fleet" enemas, including saline, mineral oil, and bisacodyl. But this page refers only to saline enemas.
Occasional constipation
Saline enema (Fleet Enema) is a type of osmotic laxative called a saline laxative. It contains salt, which pulls water into your intestines (gut). This helps make your stool softer and easier to pass. It also encourages gut movement to help empty your bowels.
Source: DailyMed
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Works within 2 to 15 minutes to relieve constipation
Good option for people who have a hard time taking medications by mouth
Available over the counter, so you don't need a prescription
Children's version of saline enema available (under brand name Pedia-Lax)
Might be difficult for some people to use properly
Not a good option for people on a low-salt or low-sodium diet
Not a good option for people with kidney or heart problems since it contains sodium
Can be harmful if you use more than one dose within a 24-hour period
Since there are different types of "Fleet" enemas (e.g., saline, mineral oil, bisacodyl), be sure to check the active ingredient on the package. Ask your pharmacist if you're not sure whether the enema you have is saline enema (Fleet Enema).
Before you use saline enema (Fleet Enema), speak to your primary care provider (PCP) if you have stomach pain, nausea, or vomiting or if you've noticed a sudden change in your bowel patterns for more than 2 weeks. Your PCP can make sure this medication is appropriate for you.
Also check with your PCP whether saline enema (Fleet Enema) is safe for you if you're on a low-salt diet or if you have heart or kidney problems. Since saline enema (Fleet Enema) contains salt, it might not be the best option for you.
Carefully follow the instructions on the package. This makes sure you're using saline enema (Fleet Enema) properly and that you're getting the right amount of medication. For most products, it's normal if there's some liquid left in the bottle after you use it.
Be sure to drink plenty of fluids before you use saline enema (Fleet Enema). Drinking enough water helps with constipation. It also helps prevent dehydration from using saline enema (Fleet Enema); you might lose extra fluids when the medication works and you could become dehydrated.
After giving the enema, try to stay in the same position until you feel a strong urge to go to the bathroom. This usually happens in 2 to 5 minutes, so you might want to stay near a toilet. If you don't feel an urge within 5 minutes, still go to the bathroom and try to have a bowel movement.
Stop using saline enema (Fleet Enema) and call your PCP if you need to use it for longer than 3 days or if you notice any blood in your stool. Also call them if you don't have a bowel movement within 30 minutes of using the enema.
The enema is for rectal use only and should never be swallowed. Contact a Poison Control Center right away at 1-800-222-1222 if someone accidentally swallows the enema.
Saline enema (Fleet Enema) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Risk factors: History of kidney or heart problems | Following a low-salt diet
Saline enema (Fleet Enema) is an osmotic laxative that's made from salt (sodium). This can be an issue if you have certain kidney or heart conditions or if you need to watch your salt intake. Speak with your primary care provider (PCP) or pharmacist before you use saline enema (Fleet Enema) if you have kidney or heart problems or if you're on a low-salt diet. Ask them if this medication is safe for you to use.
Risk factors: Young children | Older than 55 years | Dehydrated (low fluid levels in the body) | History of kidney or gut problems | Taking water pills (diuretics)
Don't use more than the recommended dose of saline enema (Fleet Enema) per day. Using more than the recommended dose of the medication can be harmful. Although rare, this can cause severe dehydration and changes in the electrolyte levels in the blood, which can lead to serious and sometimes life-threatening harm to the kidneys and heart.
Dosage | Quantity | Price as low as | Price per unit |
---|---|---|---|
4.5 ounces | 1 enema | $3.04 | $3.04 |
Different manufacturers make different sizes of saline enema (Fleet Enema), which are meant for different age groups. Make sure to check the label, and follow the instructions carefully.
General dosing is listed below.
Adults and children age 12 and older: The typical dose is the contents of one adult bottle inserted into the rectum as a single dose.
Children age 5 to 11 years: Use the children's version of saline enema (e.g., Pedia-Lax brand name), which is safer for this age group. The typical dose is the contents of one children's bottle inserted into the rectum as a single dose.
Children age 2 to 4 years: Use the children's version of saline enema (e.g., Pedia-Lax brand name), which is safer for this age group. The typical dose is the contents of one-half of a children's bottle inserted into the rectum as a single dose.
Children under 2 years of age: Don't use. Ask your child's pediatrician about other options to relieve constipation.
Occasional constipation and irregular bowel movements
Occasional constipation and irregular bowel movements
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C.B. Fleet Company, Inc. (2023). PEDIA-LAX- sodium phosphate, dibasic and sodium phosphate, monobasic enema [package insert]. DailyMed.
Dynarex Corporation. (2022). SALINE ENEMA- sodium phosphate monobasic, sodium phosphate dibasic enema [package insert]. DailyMed.
Gordon, M., et al. (2016). Osmotic and stimulant laxatives for the management of childhood constipation. The Cochrane Database of Systematic Reviews.
MedlinePlus. (2023). Dehydration.
MedlinePlus. (2017). Sodium phosphate rectal.
Strategic Sourcing Services LLC. (2022). HEALTHMART SALINE SINGLE LAXATIVE- sodium phosphate, dibasic and sodium phosphate, monobasic, unspecified form enema [package insert]. DailyMed.
U.S. Food and Drug Administration. (2016). FDA drug safety communication: FDA warns of possible harm from exceeding recommended dose of over-the-counter sodium phosphate products to treat constipation.
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