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Medications and Drugs

Brand Names: Equalactin, Fiber Lax, FiberCon, Fiberlax, Fibernorm, Konsyl Fiber, Perdiem Fiber Caplet

Generic Name: polycarbophil (Pronunciation: POL ee KAR boe fil)

What is polycarbophil (Equalactin, Fiber Lax, FiberCon, Fiberlax, Fibernorm, Konsyl Fiber, Perdiem Fiber Caplet)?

Polycarbophil is a bulk-forming laxative that increases the amount of water in your stools to help make them softer and easier to pass.

Polycarbophil is used to treat constipation and to help maintain regular bowel movements.

Polycarbophil may also be used in some cases to treat diarrhea or irritable bowel syndrome.

Polycarbophil may also be used for other purposes not listed in this medication guide.

What are the possible side effects of polycarbophil?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using polycarbophil and call your doctor at once if you have a serious side effect such as:

Less serious side effects may include:

  • mild stomach pain;
  • bloating; or
  • gas.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

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

You should not use this medication if you are allergic to polycarbophil or to mineral oil, sodium laurel sulfate, or povidone (such as Betadine).

Before using polycarbophil, tell your doctor if you are allergic to any drugs, or if you have trouble swallowing, a blockage in your intestines, stomach pain with nausea or vomiting, a history of bleeding from your rectum, or a sudden change in your bowel habits that has lasted for 2 weeks or longer.

Ask your doctor before taking polycarbophil if you are pregnant or breast-feeding.

The polycarbophil tablet may expand in your throat and cause you to choke if you do not use enough liquid to help swallow the pill. Be sure to drink a full 8-ounce glass of water or other liquid while swallowing the regular tablet or after chewing the chewable tablet.

Polycarbophil is usually taken up to 4 times per day. Do not take more than recommended by your doctor or listed on the medicine label.

Polycarbophil should cause you to have a bowel movement within 12 to 72 hours.

Do not take polycarbophil for longer than 7 days unless your doctor tells you to.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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