Osmotic laxatives, including magnesium citrate and magnesium hydroxide, may produce a bowel movement in 30 minutes to 6 hours. Others may not take effect for 24–48 hours. Stimulant laxatives, such as Dulcolax and Senna, may take 6–12 hours. Stool softeners, such as Docusate, may take 24–48 hours.
Relief within hours
The fastest-working oral laxatives include mineral oil, saline laxatives (like magnesium hydroxide and magnesium citrate), and stimulant laxatives (like bisacodyl and senna tablets). Common OTC products in this group include Milk of Magnesia, Dulcolax, and Senokot.
How long do stool softeners take to work? It can take between 12 to 72 hours for a stool softener that is taken as directed to begin to work.
Insoluble fiber is the most beneficial for softening stools. It does not dissolve in water and helps food pass more quickly from the stomach to the intestines. Wholewheat flour, nuts, beans, and vegetables, such as cauliflower, green beans, and potatoes all contain insoluble fiber.
Water, clear soups, fruit juice without added sugar, herbal teas, and other drinks can help relieve constipation. Hydration is essential for keeping the stool soft. Juices can also contain dietary fiber, sorbitol, or other nutrients that support digestive health.
Dulcolax® Stool Softener is a stimulant-free laxative made to relieve occasional constipation. Each tablet contains 100 mg of the #1 doctor-recommended stool softener ingredient — docusate sodium.
Over-the-counter stool softeners, enemas, rectal suppositories, and oral laxatives can help you soften and eliminate the stool.
Treatment may include: Diet modifications. A diet with 20 to 35 grams of fiber daily helps in the formation of soft, bulky stool. While adding foods such as beans, whole grains, bran cereals, fresh fruits and vegetables is helpful in adding fiber to the diet.
Dulcolax® Liquid Laxative works faster than MiraLAX. Dulcolax® works in as little as 30 minutes (30 minutes to 6 hours) while MiraLAX works in 1–3 days (based on product labeling).
Stimulant laxatives, such as Dulcolax and Senna, may take 6–12 hours. Stool softeners, such as Docusate, may take 24–48 hours. Fiber-based laxatives, including Fibercon and Metamucil, can take 12–72 hours.
Stool softeners like docusate (Colace) work by reducing the hardness of stools, which should make them easier to pass. Problem is, they won't do much if you're already constipated, since they take three of four days to kick in, he adds. But they can help treat chronic constipation.
You'll usually have a bowel movement after about 12 to 72 hours upon using a stool softener. Don't take stool softeners for more than a week at a time. If you're still having hard stools after a week of using them, contact your healthcare provider.
Dehydration: Inadequate water intake (dehydration) is also a major cause of constipation. The intestines and colon absorb water from the stool to hydrate the body. If there is insufficient water available, stools will become hard and lumpy.
First, try drinking a cup of warm water, wait 30 minutes, and then gently massage your lower abdomen to try to stimulate the area. If that doesn't seem to help, take a hot shower, with the water concentrated on your lower back.
Tenesmus is a frequent urge to go to the bathroom without being able to go. It usually affects your bowels, but sometimes your bladder. Severe inflammation that irritates the nerves involved in pooping or peeing is often the cause. Your nerves overreact, telling your muscles that you constantly have to go.
An example of a stool softener is docusate (1 brand name: Colace). These cause the intestine to hold more fluid. This softens stools and helps the bowel move them out. Examples include polyethylene glycol (1 brand name: Miralax) and magnesium hydroxide solution (brand name: Milk of Magnesia).
Stronger laxatives such as stimulant laxatives are more appropriate for more severe symptoms. Unlike stool softeners which merely add moisture to the stool to allow for easier movement, stimulant laxatives treat more acute and chronic constipation by directly stimulating nerves in the large intestine.
Generally speaking, you can go about five days without pooping before you run into the risk of serious health issues like fecal impaction, hemorrhoids, or a bowel perforation. That said, there isn't a magic number of days to set a countdown for.
Eating When you Have Constipation. Try these things to relieve your constipation: Do not skip meals. Avoid processed or fast foods, such as white breads, pastries, doughnuts, sausage, fast-food burgers, potato chips, and French fries.