amlodipine/valsartan vs cholestyramine
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of amlodipine/valsartan and cholestyramine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Ion Exchange Resins: Staggering the dosage of hydrochlorothiazide and ion exchange resins (e.g., cholestyramine, colestipol) such that hydrochlorothiazide is administered at least 4 hours before or 4 to 6 hours after the administration of resins, would potentially minimize the interaction [see Clinical Pharmacology (12.3)] . ( 7 ) Cholestyramine and Colestipol: Reduced absorption of thiazides.
Exforge
Questran
Exforge HCT is a combination medicine used to treat high blood pressure. It contains amlodipine, valsartan, and hydrochlorothiazide to help lower your blood pressure.
Cholestyramine is a medicine that helps lower high cholesterol levels in your blood. It works by preventing your body from absorbing cholesterol in the intestines.
Exforge HCT is used to treat high blood pressure. Lowering blood pressure reduces the risk of heart problems and strokes. It is for people who need more than one medicine to control their blood pressure. It is not for the initial treatment of high blood pressure.
This medicine is used with a diet to lower high cholesterol, especially LDL cholesterol (the "bad" cholesterol). It may also help if you have high triglycerides, but it's not the best choice if high triglycerides are your main problem. Lowering cholesterol helps reduce your risk of heart disease.
This medicine works in three ways to lower blood pressure. Amlodipine relaxes your blood vessels. Valsartan blocks a substance that tightens blood vessels. Hydrochlorothiazide helps your body get rid of extra salt and water.
Cholestyramine is a resin that binds to bile acids in your intestines. Bile acids help digest fats, including cholesterol. By binding to bile acids, cholestyramine prevents them from being reabsorbed, so your body uses cholesterol to make more bile acids, which lowers cholesterol levels in your blood.
- • Dizziness
- • Swelling in your arms, hands, legs, and feet
- • Headache
- • Heartburn
- • Tiredness
- • Constipation
- Pain 11
- Interaction with another medicine 9
- Taking too much medicine on purpose 9
- Attempt to end one's own life 9
- Weight loss 9
- Diarrhoea 1,631
- Fatigue 877
- Nausea 783
- Arthralgia 621
- Headache 543
If you are pregnant, stop taking Exforge HCT right away. This medicine can harm or kill your unborn baby.
Since cholestyramine can affect how your body absorbs other medicines, take other drugs at least 1 hour before or 4 to 6 hours after taking cholestyramine.
Do not take Exforge HCT if you are pregnant. It can cause serious harm to your unborn baby, including death. Breastfeeding is not recommended while taking this medicine.
Tell your doctor if you are pregnant or plan to become pregnant. Cholestyramine may affect how you absorb vitamins, so your doctor may recommend supplements. Talk to your doctor about the risks and benefits of taking this medicine while breastfeeding.
Also Compare, Nearby Drugs
Compare cholestyramine with
How to Read This amlodipine/valsartan vs cholestyramine Comparison
amlodipine/valsartan is classified in the CCB / ARB Combination drug class, while cholestyramine sits within the Bile Acid Sequestrant class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, amlodipine/valsartan has 47 submissions while cholestyramine has 4,455. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to this medicine can trap your blood pressure medication in your stomach, which stops your body from absorbing it.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for amlodipine/valsartan or cholestyramine.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.