This medication has been used to treat common constipation, diarrhea, irritable bowel syndrome, spastic colon, diverticulitis, and hemorrhoids. Bulk-forming laxatives, also called fiber laxatives, work by increasing the amount of water in the stool, making it softer and easier to pass. These are generally the preferred laxatives for most ages.

Psyllium, one type of bulk-forming laxative, has also been used along with diet to treat high cholesterol.

Take this medication by mouth 1 to 3 times daily as directed on the product package. If your doctor has prescribed this medication, take it exactly as directed. If taking 1 dose a day, take it at bedtime. Take each dose with a large glass of liquid (8 ounces or 240 milliliters). If you are taking the chewable tablets or wafers, chew them completely, swallow, and follow with a glass of liquid. Swallow regular tablets or capsules whole with a full glass of liquid. Measure powders according to the directions on the product label. Mix in a glass of liquid, stir completely, and drink immediately. If using a liquid form of this medication, use a medication-measuring spoon/device, not a regular teaspoon, to make sure you have the correct dose.

This product must be taken with adequate liquids so that it will not swell in the throat, causing choking. Do not use this product if you have problems swallowing. After taking this product, if you experience chest pain, vomiting, or difficulty swallowing or breathing, seek immediate medical attention.

Drink plenty of fluids (6 to 8 large glasses) throughout the day while taking this medication unless your doctor has instructed you to limit fluids.

If you are starting this product for the first time, start with 1 dose a day and increase the dose every 3 to 7 days up to 3 times daily. Doing so will help to decrease side effects.

Dosage is based on your age, medical condition, and response to treatment.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day. Do not use this laxative for more than 7 days unless directed to do so by your doctor.

Tell your doctor if your constipation persists for more than 7 days or if you are unable to have a bowel movement after using this product for 3 days. These may be signs of a more serious problem.

Bloating, gas, or stomach cramps may occur. These effects usually decrease with smaller doses. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people who use this medication correctly do not have serious side effects.

If you experience any of the following symptoms, that may indicate a more serious condition, stop using this medication and tell your doctor immediately: rectal bleeding, bloody stools, sweating, fast heartbeat, weakness, dizziness, fainting.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before taking a bulk-forming laxative, tell your doctor or pharmacist if you are allergic to any of its ingredients (e.g., psyllium seed/husk, malt extract, methylcellulose); or if you have any other allergies.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: sudden/unexplained abdominal pain, nausea/vomiting, other symptoms of appendicitis (e.g., very tense abdomen, fever, chills), blockage in the intestines, hole in the intestines (perforation).

Some products may contain sugar or calcium. If you have diabetes or conditions with high blood calcium levels, consult your doctor or pharmacist for help choosing the right bulk-forming laxative for you.

This medicine may contain aspartame. If you have phenylketonuria (PKU) or any other condition that requires you to restrict your intake of aspartame (or phenylalanine), consult your doctor or pharmacist about using this drug safely.

During pregnancy, this medication is considered to be safe when used according to the package directions.

It is not known whether this product passes into breast milk. It is generally considered safe for use during breast-feeding. Consult your doctor for more information.

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially: medications taken by mouth that are monitored with blood levels (e.g., theophylline, digoxin, phenytoin, phenobarbital, valproic acid).

This laxative may cause decreased absorption of other medications. Take all other medications at least 2 hours before or after taking a bulk-forming laxative. Consult your doctor or pharmacist for more information and for further directions on how to take your other medications.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center.

Do not share this medication with others.

To help decrease constipation, drink plenty of fluids (see How to Use section), increase exercise, and increase fiber in your diet.

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

Store at room temperature between 59-86 degrees F (15-30 degrees C). Do not store in the bathroom. Keep all medicines away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

Information last revised October 2008 Copyright(c) 2008 First DataBank, Inc.