Do not take this medication if you are allergic to colesevelam, or if you have a bowel obstruction or if you have ever had pancreatitis caused by high triglycerides.
Before taking colesevelam, tell your doctor if you are allergic to any drugs, or if you have:
- trouble swallowing;
- a stomach, intestinal, or digestive disorder;
- a history of major stomach or bowel surgery; or
- if you have a vitamin A, D, E, or K deficiency.
If you have any of these conditions, you may need a dose adjustment or special tests to safely take colesevelam.
FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.
Taking colesevelam can make it harder for your body to absorb certain vitamins. These vitamins are important if you are nursing a baby. Do not take colesevelam without telling your doctor if you are breast-feeding a baby.
Avoid eating foods that are high in fat or cholesterol. Colesevelam will not be as effective in lowering your cholesterol if you do not follow a cholesterol-lowering diet plan.
Do not take any other medications within 4 hours before or after you take colesevelam. Colesevelam can make it harder for your body to absorb certain other medications.
Seek emergency medical attention if you think you have used too much of this medicine.
Because colesevelam is not absorbed into the bloodstream, an overdose of this medication is not expected to produce life-threatening symptoms. It is possible that an overdose may cause severe constipation.
Take the missed dose as soon as you remember (be sure to take the medicine with food and a full glass of water). If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
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 colesevelam and call your doctor at once if you have severe constipation or stomach pain.
Less serious side effects may include:
- nausea, upset stomach pain, gas, indigestion;
- feeling weak or tired;
- muscle weakness; or
- runny nose, sore throat.
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.
Do not take your other medications at the same time you take colesevelam, unless your doctor has told you to. Colesevelam can make it harder for your body to absorb certain other medications.
Before taking colesevelam, tell your doctor if you are using any of the following drugs:
- phenytoin (Dilantin);
- a blood thinner such as warfarin (Coumadin);
- glyburide (DiaBeta, Glynase Presab, Micronase, Glucovance);
- thyroid hormone replacement; or
- birth control pills.
This list is not complete and there may be other drugs that can interact with colesevelam. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Welchol and colesevelam
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Copyright 1996-2004 Cerner Multum, Inc. Version 2.05. Revision date 8/23/04