Dapagliflozin and Hydrochlorothiazide Interaction

Drug interaction information between Dapagliflozin and Hydrochlorothiazide.

Dapagliflozin and Hydrochlorothiazide have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Dapagliflozin and Hydrochlorothiazide. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.

Drug A

Dapagliflozin

SGLT2 Inhibitor

Drug B

Hydrochlorothiazide

Thiazide Diuretic

How They Interact

These two drugs do not have a meaningful effect on each other's levels in the body.

FDA Label Information

No dosing adjustments required for the following: Oral Antidiabetic Agents Metformin (1000 mg) 20 mg ↔ ↔ Pioglitazone (45 mg) 50 mg ↔ ↔ Sitagliptin (100 mg) 20 mg ↔ ↔ Glimepiride (4 mg) 20 mg ↔ ↔ Voglibose (0.2 mg three times daily) 10 mg ↔ ↔ Other Medications Hydrochlorothiazide (25 mg) 50 mg ↔ ↔ Bumetanide (1 mg) 10 mg once daily for 7 days ↔ ↔ Valsartan (320 mg) 20 mg ↓12% [↓3%, ↓20%] ↔ Simvastatin (40 mg) 20 mg ↔ ↔ Anti-infective Agent Rifampin (600 mg once daily for 6 days) 10 mg ↓7% [↓22%, ↑11%] ↓22% [↓27%, ↓17%] Nonsteroidal Anti-inflammatory Agent Mefenamic Acid (loading dose of...

Frequently Asked Questions

What SPL severity band is on file for Dapagliflozin + Hydrochlorothiazide?

Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.

Which drug in this pair has the larger labeled-interaction portfolio?

Hydrochlorothiazide has 31 labeled pairs on file vs Dapagliflozin's 13. In the minor band specifically: Dapagliflozin has 13 (also Metformin, Simvastatin, Glimepiride, Valsartan); Hydrochlorothiazide has 27 (also Losartan, Spironolactone, Propranolol, Lithium).

What mechanism field is on file for Dapagliflozin and Hydrochlorothiazide?

These two drugs do not have a meaningful effect on each other's levels in the body.

Hydrochlorothiazide carries more major-labeled pairs than Dapagliflozin

SPL source-record counts only. This page's band is minor · classes on file: Dapagliflozin (SGLT2 Inhibitor); Hydrochlorothiazide (Thiazide Diuretic).

Hydrochlorothiazide has 3 major-labeled pairs vs Dapagliflozin's 0. This page itself is in the minor band, not the major band.

Dapagliflozin

0 major · 0 moderate · 13 minor · 13 total

Hydrochlorothiazide

3 major · 1 moderate · 27 minor · 31 total

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.