NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Prescription·Evidence index

Potassium and Telmisartan: what the published research says

PubMed indexes 8 records that name Potassium and Telmisartan together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Potassium and Telmisartan. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

8 studies naming Potassium and Telmisartan.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

The effect of ramipril and telmisartan on serum potassium and its association with cardiovascular and renal events: results from the ONTARGET trial.

European journal of preventive cardiology · 2014 · PMID 24191305

Comparative StudyRandomized Controlled Trial

“With the precautions stipulated by the protocol of the ONTARGET trial, hypokalemia and hyperkalemia were infrequent events. Nevertheless, both high and low serum potassium were associated with an increased risk of cardiovascular and renal disease.”

Heerspink et al. · Authors' conclusion

Names both Potassium and Telmisartan in its title.

Quality-by-design approach for the development of telmisartan potassium tablets.

Drug development and industrial pharmacy · 2018 · PMID 29252038

Animal study

“The selected TP tablet formulated using design space showed a similar dissolution to that of Micardis® tablets at pH 7.5. The QbD approach TP tablet was bioequivalent to Micardis® tablets in beagle dogs.”

Oh et al. · From the abstract

Names both Potassium and Telmisartan in its title.

Activation of voltage-gated sodium current and inhibition of erg-mediated potassium current caused by telmisartan, an antagonist of angiotensin II type-1 receptor, in HL-1 atrial cardiomyocytes.

Clinical and experimental pharmacology & physiology · 2018 · PMID 29617054

Animal study

“Telmisartan may have greater affinity to the open/inactivated state than to the resting state residing in NaV channels. Collectively, TEL-mediated stimulation of INa and inhibition of IK(erg) could be an important ionic mechanism underlying the increased cell excitability of HL-1 cells; these actions, however, cannot be entirely explained by its blockade of AT1 receptor.”

Chang et al. · From the abstract

Names both Potassium and Telmisartan in its title.

Inhibitory effects of telmisartan on culture and proliferation of and Kv1.3 potassium channel expression in peripheral blood CD4+ T lymphocytes from Xinjiang Kazakh patients with hypertension.

Journal of the renin-angiotensin-aldosterone system : JRAAS · 2016 · PMID 27765883

Human subjects

“Telmisartan may potentially regulate hypertensive inflammatory responses by inhibiting T-lymphocytic proliferation and Kv1.3 potassium channel expression in CD4+ T lymphocytes.”

Huang et al. · Authors' conclusion

Names both Potassium and Telmisartan in its title.

The pharmacokinetic-pharmacodynamic model of telmisartan and hydrochlorothiazide on blood pressure and plasma potassium after long-term administration in spontaneously hypertensive rats.

Fundamental & clinical pharmacology · 2015 · PMID 26354414

Animal study

“The time courses of plasma potassium were successfully characterized by indirect response pharmacokinetic-pharmacodynamic model after long-term administration of telmisartan and/or hydrochlorothiazide. The model captured turnovers of blood pressure and plasma potassium in the different time phases and dose conditions.”

Yu et al. · From the abstract

Names both Potassium and Telmisartan in its title.

Effects of telmisartan on IKCa1 potassium channel after T-lymphocyte activation and proliferation in peripheral blood of hypertensive patients in Xinjiang Kazakh

Zhonghua yi xue za zhi · 2014 · PMID 24731458

Human subjects

“Telmisartan can block the IKCa1 potassium channel of T lymphocytes in peripheral blood of hypertensive patients in Xinjiang Kazakh. It suggests that telmisartan may play an anti-inflammatory effect by blocking the IKCa1 potassium channels of T lymphocyte activation.”

Zhang et al. · Authors' conclusion

Names both Potassium and Telmisartan in its title.

Effects of telmisartan on voltage-gated Kv1.3 and Kv1.5 potassium channels expressed in Xenopus oocytes

Zhonghua xin xue guan bing za zhi · 2009 · PMID 19719998

Animal study

“Telmisartan blocks open-state Kv1.3 channel which could be one of the mechanisms related to its immunomodulatory and anti-atherosclerosis effect. Telmisartan also blocks open-state Kv1.5 channel which might partly account for its effect on reducing the incidence of atrial fibrillation.”

Li et al. · Authors' conclusion

Names both Potassium and Telmisartan in its title.

Electropharmacological properties of telmisartan in blocking hKv1.5 and HERG potassium channels expressed on Xenopus laevis oocytes.

Acta pharmacologica Sinica · 2008 · PMID 18664324

Human subjects

“Telmisartan blocks hKv1.5 potassium channels involving open and inactivated states at plasma concentration levels of therapeutic doses; whereas the blockade of HERG channels occurs only at supra plasma concentration levels of therapeutic doses and preferentially in open and closed-state channels.”

Tu et al. · Authors' conclusion

Names both Potassium and Telmisartan in its title.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Potassium, Telmisartan, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.