The seed husks of the psyllium plant contain a type of soluble fiber that is used to prevent or treat constipation. Like all types of fiber, psyllium passes through the body undigested. As it travels through the gastrointestinal tract, psyllium forms a soft gel that helps move the contents of the intestines out of the body. A variety of products containing psyllium for constipation are widely available in supermarkets and pharmacies.
Function
The soluble fiber in psyllium functions as a laxative. Because soluble fiber readily absorbs water, it dissolves in fluids found in the intestine and expands and forms a gel that stimulates bowel movements. Psyllium also softens and bulks up stools so that they pass more easily out of the body. When psyllium is used for constipation, bowel movements often occur more frequently.
Types
Psyllium is used in commercial laxatives in the form of a powder or granules that are mixed with water and used as a beverage, or as a cookie that can be eaten with water on the side. A variety of non-prescription psyllium products can be found in the laxative section of drugstores and pharmacies. Psyllium supplements are also sold in health food stores. Psyllium is also an ingredient in some high-fiber foods such as cold breakfast cereals.
Dose
When using psyllium products for constipation, the dose is indicated on the product label. For psyllium husks, the recommended dose is 1 tsp., three times a day, mixed into a large glass of water or juice, according to University of Michigan Health System. A double dose of psyllium in any form should not be taken to make up for a missed dose, or side effects may occur.
Time Frame
Psyllium for constipation should be taken on a schedule according to package directions, but for no longer than one week unless instructed by a doctor. When a dose is missed, psyllium can be taken at any time, but if it is close in time to the next scheduled dose, it is better to skip a dose and stay on schedule. Because psyllium supplements can interfere with some medications, such as those used to regulate heart function, blood sugar and cholesterol levels, the University of Maryland Medical Center recommends taking psyllium supplements at least one hour before or several hours after taking any medication.
Side Effects
Psyllium side effects, often due to an overdose, may include stomach pain, diarrhea, gas, bloating and further constipation. To help prevent side effects when taking psyllium for constipation, it is important to take the dose recommended on the product label and drink plenty of fluids with psyllium supplements and throughout the day they're taken.
Warning
If not properly diluted, psyllium can cause more extreme side effects, such as choking and difficulty breathing. Anyone with a bowel obstruction or unregulated diabetes should avoid the use of psyllium, according to the University of Michigan Health System. Although rare, allergic reactions to psyllium supplements may occur in some people.
