Common Use
Questran (cholestyramine) is a bile acid sequestrant prescribed for the treatment of high cholesterol (primary hypercholesterolemia) and the reduction of cardiovascular disease risk. This medication works by binding to bile acids in the intestine, preventing their reabsorption and forcing the liver to use more cholesterol to produce new bile acids, thereby lowering blood cholesterol levels. Questran is also prescribed to relieve pruritus (itching) caused by partial biliary obstruction, where bile acids accumulate in the skin. Additionally, cholestyramine may be used to treat diarrhea caused by excess bile acids after certain surgeries. This cholesterol-lowering powder is most effective when combined with a heart-healthy diet, regular exercise, and overall lifestyle modifications. Patients who buy Questran online value its proven track record in managing hypercholesterolemia.

Dosage and Direction
Dosage of Questran depends on the patient's cholesterol levels and treatment goals. Adults typically take one to six packets of the powder daily, mixed with 60-180 ml of water, juice, or other non-carbonated beverage. It is usually administered one to four times daily, preferably with meals. Stir the powder thoroughly before drinking, and rinse the glass with additional liquid to ensure the full dose is consumed. Never take the dry powder without mixing it, as it may cause choking or esophageal irritation. Follow your doctor's instructions exactly, and do not skip doses. Dosage may be started low and gradually increased to minimize gastrointestinal side effects.

Precautions
Before starting Questran, inform your doctor if you have bowel obstruction, chronic constipation, digestive disorders, hemorrhoids, malabsorption syndromes, phenylketonuria, or a history of pancreatitis. Adequate fluid intake (at least 6-8 glasses of water daily) and dietary fiber are important to prevent severe constipation, a common side effect. Because cholestyramine can interfere with the absorption of many other medications and fat-soluble vitamins (A, D, E, K), careful timing of all other drugs is essential. Inform your healthcare provider about every medication you are taking so that proper dosing schedules can be established.

Contraindications
Do not use Questran if you have complete biliary obstruction (where bile is not secreted into the intestine) or are allergic to cholestyramine or any other ingredients in the formulation. Use with extreme caution in patients with severe or chronic constipation, as cholestyramine can worsen this condition and potentially lead to fecal impaction. Patients with triglyceride levels above 500 mg/dL should avoid cholestyramine, as it can further increase triglycerides. The powder formulation may contain phenylalanine, which is a concern for patients with phenylketonuria.

Possible Side Effects
Common side effects of Questran include constipation (the most frequent complaint), abdominal bloating, gas, flatulence, nausea, heartburn, and indigestion. Long-term use may result in deficiencies of fat-soluble vitamins (A, D, E, K) and folic acid if supplementation is not provided. Some patients may experience a rash or skin irritation. Rare but serious effects may include bowel obstruction, fecal impaction, or steatorrhea (fatty stools). Contact your doctor if you experience severe or persistent constipation, unusual bleeding or bruising, or signs of vitamin deficiency.

Drug Interaction
Questran significantly interferes with the absorption of numerous oral medications, including warfarin, thyroid hormones (levothyroxine), digitalis glycosides, diuretics, beta-blockers, phenobarbital, and fat-soluble vitamins. To minimize these interactions, take all other medications at least 1 hour before or 4-6 hours after Questran. This timing is critical to ensure adequate absorption of your other prescriptions. Cholestyramine may also bind to oral contraceptives, tetracycline antibiotics, and certain diabetes medications. Always inform your doctor and pharmacist about all medications, vitamins, and supplements you are taking.

Missed Dose
If a dose of Questran is missed, take it as soon as you remember, unless it is near the time of the next dose. In that case, skip the missed dose and continue your regular schedule. Do not double the dose to make up for a missed one. Regular, consistent use is important for achieving optimal cholesterol reduction.

Overdose
An overdose of Questran may cause severe constipation, abdominal pain, bloating, nausea, or intestinal obstruction. Because cholestyramine is not absorbed into the bloodstream, systemic toxicity is unlikely, but gastrointestinal complications can be serious. Seek immediate medical attention if an overdose is suspected or if severe constipation develops. Supportive care, including bowel management and monitoring, may be required.

Storage
Store Questran at room temperature between 15-30 degrees C (59-86 degrees F), away from heat and moisture. Keep the container tightly closed to protect the powder from humidity. Keep out of reach of children and pets. Do not use the medication past its expiration date.

Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.