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Note: This document contains side effect information about cholestyramine. Some of the dosage forms listed on this page may not apply to the brand name Questran Light.For the Consumer
Applies to cholestyramine: oral powder for suspension
In some animal studies, cholestyramine (the active ingredient contained in Questran Light) was found to cause tumors. It is not known whether cholestyramine causes tumors in humans.
Along with its needed effects, cholestyramine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking cholestyramine:
Check with your doctor as soon as possible if any of the following side effects occur while taking cholestyramine:
Some side effects of cholestyramine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
For Healthcare Professionals
Applies to cholestyramine: compounding powder, oral powder for reconstitutionGeneral
The most frequently reported side effect is constipation.Gastrointestinal
Intestinal obstruction occurred rarely and 2 deaths in pediatric patients were reported.
Very common (10% or more): Constipation
Uncommon (0.1% to 1%): Tongue irritation, irritation of perianal area, abdominal discomfort/pain/distention, flatulence, nausea, vomiting, diarrhea, heartburn, dyspepsia, steatorrhea
Rare (less than 0.1%): Intestinal obstruction
Frequency not reported: Rectal bleeding, black stools, hemorrhoidal bleeding, bleeding from known duodenal ulcer, dysphagia, hiccoughs, ulcer attack, sour taste, pancreatitis, rectal pain, diverticulitis, eructation, dental bleeding, dental caries, calcification of gallbladder, tooth discoloration, erosion of tooth enamelCardiovascular
Frequency not reported: Claudication, angina, arteritis, thrombophlebitis, myocardial infarction, myocardial ischemia, postprandial angina increasedMusculoskeletal
Common (1% to 10%): Osteoporosis
Frequency not reported: Backache, arthritis, muscle/joint painHematologic
Uncommon (0.1% to 1%): Bleeding
Frequency not reported: Prothrombin time increased, prothrombin time decreased, anemia, hypoprothrombinemiaMetabolic
Uncommon (0.1% to 1%): Anorexia, hyperchloremic acidosis, Vitamin A deficiency, Vitamin K deficiencyDermatologic
Uncommon (0.1% to 1%): Rash, skin irritation
Frequency not reported: Ecchymosis, xanthoma of hands/fingers, urticariaHepatic
Frequency not reported: Liver function test abnormalNervous system
Frequency not reported: Headache, paresthesia, syncope, dizziness, drowsiness, femoral nerve painOther
Frequency not reported: Vertigo, weight loss, weight gain, glands swollen, edema, chest pain, tinnitusOcular
Frequency not reported: Arcus juvenilis, uveitis, night blindnessGenitourinary
Frequency not reported: Hematuria, dysuria, burnt odor to urine, diuresisRespiratory
Frequency not reported: Asthma, wheezing, shortness of breathPsychiatric
Frequency not reported: Libido increased
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