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What is the most important information I should know about methylcellulose?

Do not use methylcellulose without first talking to your doctor if you have stomach (abdominal) pain, nausea, vomiting, or difficulty swallowing. Taking methylcellulose without enough liquid may cause it to swell in the throat and cause choking. If you experience chest pain, vomiting, difficulty swallowing, or difficulty breathing after taking methylcellulose, seek immediate medical attention.

What is methylcellulose?

Methylcellulose is a bulk-forming laxative. Methylcellulose absorbs liquid in the intestines and makes a bulky, softer stool which is easier to pass.

Methylcellulose helps relieve constipation and to maintain regularity.

Methylcellulose may also have uses other than those listed in this product guide.

What should I discuss with my healthcare provider before taking methylcellulose?

Do not take methylcellulose without first talking to your doctor if you have

• stomach (abdominal) pain, nausea, or vomiting;

• difficulty swallowing; or

• intestinal obstruction or fecal impaction.

You may not be able to take methylcellulose or you may require special monitoring while taking methylcellulose if you have any of the conditions listed above.

Each level scoop of sugar-free methylcellulose powder contains 52 mg of phenylalanine. Individuals with phenylketonuria may need to monitor their intake of this additive.

Talk to your doctor before taking methylcellulose if you are pregnant or breast-feeding a baby.

How should I take methylcellulose?

Take methylcellulose exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.

Take methylcellulose capsules with a full glass (at least 8 ounces) of water or another liquid.

Mix methylcellulose powder with at least 8 ounces of water or another noncarbonated beverage. Mix briskly and drink promptly.

Taking methylcellulose without enough liquid may cause it to swell in the throat and cause choking.

If methylcellulose has produced no effect within one week or if rectal bleeding occurs, stop taking methylcellulose and contact your doctor. Do not take more methylcellulose than is recommended or for longer than one week except under the direction of your doctor.

If you experience chest pain, vomiting, difficulty swallowing, or difficulty breathing after taking methylcellulose, seek immediate medical attention. Store methylcellulose at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose.

What happens if I overdose?

Seek emergency medical attention if an overdose is suspected.

Symptoms of a methylcellulose overdose are not known.

What should I avoid while taking methylcellulose?

There are no restrictions on foods, beverages, or activities during treatment with methylcellulose unless otherwise directed by your healthcare provider.

What are the possible side effects of methylcellulose?

If you experience any of the following uncommon but serious side effects, stop taking methylcellulose and seek medical treatment or contact your doctor immediately:

• an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);

• chest pain;

• difficulty swallowing;

• rectal bleeding; or

• severe abdominal pain, nausea or vomiting.

Other, less serious side effects, other than those listed here, may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect methylcellulose?

Methylcellulose can interact with other medications. Before taking methylcellulose, talk to your doctor if you are taking any prescription or over-the-counter medicines. You may not be able to take methylcellulose, or you may require a dosage adjustment or special monitoring if you are taking any other medicines.

Where can I get more information?

Your pharmacist has more information about methylcellulose written for health professionals that you may read.