Drug interactions
Colestipol + Hydrochlorothiazide-irbesartan
Severity: Moderate
Colestipol and Hydrochlorothiazide-irbesartan: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Colestipol binds hydrochlorothiazide in the gut and markedly reduces its absorption, which can weaken its diuretic and antihypertensive effect.
What this interaction means in plain words
Colestipol and Hydrochlorothiazide-irbesartan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Colestipol belongs to Cardiovascular; Hydrochlorothiazide-irbesartan belongs to Cardiovascular.
Why it happens
Anion-exchange resin binding of hydrochlorothiazide in the gastrointestinal tract reduces absorption.
What to do
Give hydrochlorothiazide at least 4 hours before colestipol, or 4 to 6 hours after it. Monitor blood pressure after starting or stopping the resin.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Hydrochlorothiazide-irbesartan
- Aliskiren + Hydrochlorothiazide-irbesartan Contraindicated
- Dofetilide + Hydrochlorothiazide-irbesartan Contraindicated
- Hydrochlorothiazide-irbesartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-irbesartan Major
- Amifostine + Hydrochlorothiazide-irbesartan Major
- Amiloride + Hydrochlorothiazide-irbesartan Major
Other interactions of Colestipol
- Amlodipine-hydrochlorothiazide-valsartan + Colestipol Moderate
- Amlodipine-olmesartan-hydrochlorothiazide + Colestipol Moderate
- Atenolol-chlorthalidone + Colestipol Moderate
- Azilsartan-chlorthalidone + Colestipol Moderate
- Candesartan-hydrochlorothiazide + Colestipol Moderate
- Captopril-hydrochlorothiazide + Colestipol Moderate
Frequently asked questions
Can I take Colestipol with Hydrochlorothiazide-irbesartan?
MediHelp rates the interaction as moderate. Colestipol and Hydrochlorothiazide-irbesartan can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Colestipol binds hydrochlorothiazide in the gut and markedly reduces its absorption, which can weaken its diuretic and antihypertensive effect.
How serious is the interaction between Colestipol and Hydrochlorothiazide-irbesartan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give hydrochlorothiazide at least 4 hours before colestipol, or 4 to 6 hours after it. Monitor blood pressure after starting or stopping the resin.
What other medicines interact with Hydrochlorothiazide-irbesartan?
MediHelp also lists interactions of Hydrochlorothiazide-irbesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-irbesartan page.
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