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

Supplement × Prescription·Evidence index

Hydrochlorothiazide and Potassium: what the published research says

PubMed indexes 6 records that name Hydrochlorothiazide and Potassium 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 Hydrochlorothiazide and Potassium. 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

6 studies naming Hydrochlorothiazide and Potassium.

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

Hydrochlorothiazide vs chlorthalidone, indapamide, and potassium-sparing/hydrochlorothiazide diuretics for reducing left ventricular hypertrophy: A systematic review and meta-analysis.

Journal of clinical hypertension (Greenwich, Conn.) · 2018 · PMID 30251403

Comparative StudyMeta-AnalysisSystematic ReviewHuman subjects

“In conclusion, these novel results have demonstrated that CHIP diuretics reduce LVM 2-fold more than HCTZ among hypertensive patients. Although generally related to LVM, blood pressure fails to explain the superiority of CHIP diuretics for reducing LVM.”

Roush et al. · From the abstract

Names both Hydrochlorothiazide and Potassium in its title.

Meta-analysis of dose-response relationships for hydrochlorothiazide, chlorthalidone, and bendroflumethiazide on blood pressure, serum potassium, and urate.

Hypertension (Dallas, Tex. : 1979) · 2012 · PMID 22547443

Meta-AnalysisHuman subjects4683 participants

“Hydrochlorothiazide, chlorthalidone, and bendroflumethiazide have markedly different potency. This may account for differences in the antihypertensive effect between hydrochlorothiazide and chlorthalidone using standard dose ranges.”

Peterzan et al. · From the abstract

Names both Hydrochlorothiazide and Potassium in its title.

Meta-analysis of dose-response characteristics of hydrochlorothiazide and chlorthalidone: effects on systolic blood pressure and potassium.

American journal of hypertension · 2010 · PMID 20111008

Meta-AnalysisHuman subjects

“Equivalence analysis using data from several studies suggests that the SBP reductions achieved with HCTZ and chlorthalidone cannot be considered equivalent within the low-dose range currently recommended. However, within this dosing range, reductions in potassium can be considered equivalent.”

Ernst et al. · Authors' conclusion

Names both Hydrochlorothiazide and Potassium in its title.

Hydrochlorothiazide/Losartan Potassium Tablet Prepared by Direct Compression.

Pharmaceutics · 2022 · PMID 36015367

“1 tablet and the Hyzaar® tablet in HCTZ, losartan carboxylic acid (E-3174), and LOS-K (F < F0.05). Thus, formulation and preparation factors were determined according to the combination of the compression and mechanical properties of the mixed powder and quality of tablets, which was demonstrated to be a feasible method in direct powder compression.”

Luo et al. · From the abstract

Names both Hydrochlorothiazide and Potassium in its title.

Amiloride-induced hyponatremia.

Acta medica Scandinavica · 1980 · PMID 7468318

Case ReportsHuman subjects

“"Amiloride hyponatremia" is suggested to be due to a direct effect of amiloride + hydrochlorothiazide on the distal nephrons. The combination amiloride + hydrochlorothiazide must be used cautiously in elderly patients and the possibility of hyponatremia should be born in mind cases of vague symptoms and CNS disturbances.”

Tarssanen et al. · From the abstract

Names Hydrochlorothiazide and Potassium together in an interaction, co-administration, or pharmacokinetic context.

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 Hydrochlorothiazide, Potassium, 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.