Drug interactions
Potassium iodide + Telmisartan
Severity: Moderate
Potassium iodide and Telmisartan: 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
Potassium iodide supplies potassium, and telmisartan limits renal potassium elimination. Hyperkalemia is possible, mainly with long-term or repeated iodide dosing or reduced kidney function.
What this interaction means in plain words
Potassium iodide and Telmisartan 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.
Potassium iodide belongs to Endocrine; Telmisartan belongs to Cardiovascular.
Why it happens
Angiotensin receptor blockade lowers aldosterone-driven potassium excretion, while the potassium salt adds to the potassium load.
What to do
Monitor serum potassium and creatinine if potassium iodide is used for more than a brief course. Reduce or stop the iodide if hyperkalemia develops.
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 Telmisartan
- Aliskiren + Telmisartan Contraindicated
- Sparsentan + Telmisartan Contraindicated
- Amifostine + Telmisartan Major
- Amiloride + Telmisartan Major
- Amlodipine-benazepril + Telmisartan Major
- Amlodipine-hydrochlorothiazide-valsartan + Telmisartan Major
Other interactions of Potassium iodide
- Amiloride + Potassium iodide Moderate
- Amlodipine-benazepril + Potassium iodide Moderate
- Amlodipine-hydrochlorothiazide-valsartan + Potassium iodide Moderate
- Amlodipine-olmesartan-hydrochlorothiazide + Potassium iodide Moderate
- Amlodipine-olmesartan + Potassium iodide Moderate
- Amlodipine-perindopril + Potassium iodide Moderate
Frequently asked questions
Can I take Potassium iodide with Telmisartan?
MediHelp rates the interaction as moderate. Potassium iodide and Telmisartan 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. Potassium iodide supplies potassium, and telmisartan limits renal potassium elimination. Hyperkalemia is possible, mainly with long-term or repeated iodide dosing or reduced kidney function.
How serious is the interaction between Potassium iodide and Telmisartan?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and creatinine if potassium iodide is used for more than a brief course. Reduce or stop the iodide if hyperkalemia develops.
What other medicines interact with Telmisartan?
MediHelp also lists interactions of Telmisartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Telmisartan page.
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