Medication·Interactions & depletion·Reviewed June 9, 2026
Hydrochlorothiazide interactions.
Hydrochlorothiazide has 12 documented interactions in the NutriStack database. Prolonged use is also associated with lower Potassium, Magnesium, Zinc, and Sodium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Hydrochlorothiazide at a glance.
A quick, data-grounded summary. The full tables are below.
Hydrochlorothiazide has 12 documented interactions in the NutriStack database. Prolonged use is also associated with lower Potassium, Magnesium, Zinc, and Sodium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Substances that interact with hydrochlorothiazide.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Alcohol | Caution | Hydrochlorothiazide lowers blood pressure partly through natriuresis and reduced plasma volume. Alcohol can potentiate orthostatic hypotension, so... details → |
| Calcium | Caution | Hydrochlorothiazide reduces urinary calcium excretion and can raise serum calcium. Adding high-dose calcium supplements can increase the risk of... details → |
| L-Arginine | Caution | L-Arginine can lower blood pressure through nitric-oxide-mediated vasodilation. Hydrochlorothiazide is an antihypertensive diuretic, so adding... details → |
| L-Citrulline | Caution | L-Citrulline can increase arginine availability and modestly lower systolic blood pressure. Hydrochlorothiazide also lowers blood pressure, so the... details → |
| Lithium | Caution | Thiazide diuretics reduce lithium clearance by 25-40%, significantly increasing the risk of lithium toxicity. This is one of the most... details → |
| Vitamin D2 | Caution | Hydrochlorothiazide reduces urinary calcium excretion, and Vitamin D2 can increase calcium absorption after conversion to active vitamin D... |
| Vitamin D3 | Caution | Hydrochlorothiazide can raise serum calcium by reducing urinary calcium loss, while Vitamin D3 increases intestinal calcium absorption. Standard... details → |
| Magnesium Citrate | Synergy | Hydrochlorothiazide can increase renal magnesium excretion during chronic therapy. Magnesium citrate may help replace magnesium if levels fall, and... details → |
| Magnesium Glycinate | Synergy | HCTZ increases renal magnesium excretion, and chronic use can lead to hypomagnesemia. Magnesium depletion can worsen potassium depletion (refractory... details → |
| Magnesium Malate | Synergy | Hydrochlorothiazide may gradually lower magnesium status by increasing urinary losses. Magnesium malate can help replenish magnesium when... details → |
| Magnesium Taurate | Synergy | Hydrochlorothiazide can produce chronic magnesium wasting, and magnesium taurate provides magnesium that may help restore stores. This is most... details → |
| Potassium | Synergy | Hydrochlorothiazide can lower serum potassium through renal potassium wasting. Potassium repletion can be clinically useful when levels are low, but... details → |
What hydrochlorothiazide can deplete.
Nutrients this medication is associated with lowering over time, with the mechanism, a suggested replacement where one applies, and the biomarker to monitor. Discuss any replacement with your prescriber first.
| Nutrient | Severity | How it happens | Replace with | Monitor |
|---|---|---|---|---|
| Potassium | Moderate | Thiazide diuresis can increase distal sodium delivery and urinary potassium secretion, so potassium should be monitored rather than self-repleted. | Clinician-guided potassium repletion if serum potassium is low | Serum potassium + kidney function |
| Magnesium | Moderate | Thiazides can increase urinary magnesium losses and contribute to low magnesium status. | Magnesium Glycinate | Serum magnesium or RBC magnesium |
| Zinc | Mild | Chronic thiazide use can increase urinary zinc excretion and gradually lower zinc balance. | Zinc Picolinate | Serum zinc |
| Sodium | Moderate | Thiazides are a common medication cause of hyponatremia, especially in older adults. | – | Serum sodium |
| CoQ10 | Mild | Beta-blocker and diuretic therapy are associated with lower CoQ10 status in some long-term users, likely through increased oxidative demand and... | Coenzyme Q10 | Plasma CoQ10 |
The full hydrochlorothiazide profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common hydrochlorothiazide questions.
Quick answers drawn from the tables above.
What interacts with Hydrochlorothiazide?
In the NutriStack database, Hydrochlorothiazide has 12 documented interactions. The most notable include Alcohol, Calcium, L-Arginine, L-Citrulline, and Lithium. Check any specific combination before taking it and confirm with your prescriber.
Does Hydrochlorothiazide deplete any nutrients?
Hydrochlorothiazide is associated with lowering Potassium, Magnesium, Zinc, Sodium, and CoQ10 with prolonged use. Useful biomarkers to monitor include Serum potassium + kidney function, Serum magnesium or RBC magnesium, and Serum zinc. Ask your prescriber before adding any replacement supplement.
Is it safe to take Alcohol with Hydrochlorothiazide?
NutriStack classifies the Alcohol and Hydrochlorothiazide pairing as caution: Hydrochlorothiazide lowers blood pressure partly through natriuresis and reduced plasma volume. Alcohol can potentiate orthostatic hypotension, so combining them may... Limit alcohol when starting or changing hydrochlorothiazide. If you drink, hydrate appropriately, stand slowly, and avoid heavy intake; stop and... Always confirm with your prescriber.
Check your whole stack
See how hydrochlorothiazide fits your supplements.
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