Drink at least 8 oz. If your fiber intake has been low up until now, start off with smaller amounts to allow your body to adjust and to reduce side effects like gas and bloating. Take psyllium supplements a minimum of one hour before you take medications or other supplements or at least two to four hours afterward to prevent reduced absorption.
Psyllium might specifically interact with tricyclic antidepressants, carbamazepine, cholesterol drugs, digoxin, lithium and diabetes drugs, according to the University of Maryland Medical Center.
Do not use psyllium without talking to your doctor first if you take these medications. Avoid psyllium if you have intestinal blockages, trouble swallowing, unexplained abdominal pain or rectal bleeding.
Nutrition Nutrition Basics Fiber. If you suspect that you or someone else might have taken an overdose of this medicine, go to the emergency room of your local hospital.
Take the container with you, even if it is empty. This medicine is for you. Never give it to other people even if their condition appears to be the same as yours. Do not keep out-of-date or unwanted medicines. Ask your pharmacist about ways to dispose of medicines safely in your local area.
S National Library of Medicine. Dated December Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions.
Egton Medical Information Systems Limited has used all reasonable care in compiling the information but make no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions.
As a rule, you should not take psyllium supplements at the same time as other medications. Take psyllium at least 1 hour before or 2 to 4 hours after taking other medications. You should always take psyllium with a full 8 oz. Taking psyllium supplements without adequate liquids may cause it to swell, and, in extreme cases, cause choking. DO NOT take this product if you have bowel obstructions or spasms, or if you have difficulty swallowing. People with esophageal stricture narrowing of the esophagus or any other narrowing or obstruction of the gastrointestinal tract should not take psyllium.
If you are being treated with any of the following medications, you should not use psyllium supplements without first talking to your health care provider. Dietary fiber has been shown to lower the blood levels and effectiveness of tricyclic antidepressant medications in some people. If you take tricyclic antidepressants, talk to your doctor before taking psyllium.
Tricyclic antidepressants include:. Taking psyllium with carbamazepine, a medication used to treat seizures, may decrease the absorption and effectiveness of carbamazepine. Taking psyllium with cholesterol-lowering medications called bile acid sequestrants may help further lower cholesterol levels and may reduce side effects of colestipol.
Talk to your doctor about whether this may be an option for you. Bile acid sequestrants include:. Fiber supplements may reduce levels of blood sugar, making the possibility of hypoglycemia low blood sugar more likely. Talk to your doctor before taking fiber supplements, as your dose of diabetes medications may need to be adjusted.
Fiber supplements may reduce the absorption of digoxin, a medication used to regulate heart function. You should not take fiber supplements at the same time as digoxin.
Psyllium may lower lithium levels in the blood, reducing the effectiveness of this medication. If you are taking both psyllium and lithium, you should take them at least 1 to 2 hours apart, and your doctor should closely monitor your lithium levels. Lack of effect of a high-fiber cereal supplement on the recurrence of colorectal adenomas. N Eng J Med. Cholesterol-lowering effects of psyllium intake adjunctive to diet therapy in men and women with hypercholesterolemia: meta-analysis of 8 controlled trials.
Am J Clin Nutr. Dietary fiber supplementation for fecal incontinence: a randomized clinical trial. Res Nurs Health. Dietary protein and soluble fiber reduce ambulatory blood pressure in treated hypertensives. Sequential effects of a high-fiber diet with psyllium husks on the expression levels of hepatic genes and plasma lipids. Beneficial effect of high dietary fiber intake in patients with type 2 diabetes mellitus.
Current gut-directed therapies for irritable bowel syndrome. Curr Treat Options Gastroenterol. Different effect of psyllium and guar dietary supplementation on blood pressure control in hypertensive overweight patients: a six-month, randomized clinical trial. Clin Exp Hypertens. Fernandez-Banares F. The Institute of Medicine recommends a fiber intake of about 25 grams a day for women and 38 grams a day for men adults ages 21 to Older adults tend to consume fewer calories, so the recommendation for women and men over 50 is 21 grams and 30 grams a day, respectively.
If using as a laxative, psyllium should only be used for one week. Psyllium can be used for longer periods of time as a fiber supplement, but only with your healthcare provider's permission. The absorption of many drugs can be affected by psyllium, so talk to your healthcare providers before using psyllium if you're taking any medicine. Don't take psyllium at the same time you take your medicines.
Psyllium should be taken at least two hours before taking your medicines or two to four hours afterward. Before incorporating a fiber supplement like psyllium consider whether you can increase your fiber consumption by changing your diet.
To get more soluble fiber every day, look to oats, barley, nuts, seeds, legumes such as beans, lentils, and peas , fruits like apples, oranges, and grapefruit, and vegetables.
Insoluble fiber is found in fruits with edible peel or seeds, vegetables, whole-grain products such as whole-wheat bread, pasta, and crackers , bulgur wheat, stone ground cornmeal, cereals, bran, rolled oats, buckwheat, and brown rice.
While there's no dietary reference intake for soluble or insoluble fiber, many experts recommend that about one-quarter of your total daily dietary fiber intake—about six to eight grams—come from soluble fiber. Although psyllium may be helpful in treating certain types of occasional constipation and may have benefits when taken for other conditions, it's best used in combination with other treatments and preventative strategies that may include diet, lifestyle changes, and medication.
Quite the contrary: For most healthy people, psyllium offers a variety of benefits. Only people with certain conditions are advised to not take psyllium, such as those with digestive conditions, kidney disease, or who have trouble swallowing.
Children should not be given psyllium without a healthcare provider's guidance. It depends why you're taking it. If you're treating constipation , you should use psyllium for no longer than one week.
As a fiber supplement, you may be able to take it every day but you should only do so with your healthcare provider's guidance. Metamucil is one brand name of fiber supplements that contain psyllium. All are available over the counter. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Bruma Jose M. Satiety effects of psyllium in healthy volunteers.
Volume , 1 October , Pages Systematic review: the effect of prunes on gastrointestinal function. Aliment Pharmacol Ther. PLoS One. Lambeau KV and Johnson W.
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