🩺 Diabetes
Jardiance (Empagliflozin) — Complete Guide for 2026
How Jardiance (empagliflozin) works, heart and kidney benefits, side effects, dosing, and who should take it. Updated January 2026.
Key Takeaways
- Jardiance reduces cardiovascular death by 38% in Type 2 diabetes with CVD (EMPA-REG)
- Now approved for heart failure WITH and WITHOUT diabetes — landmark approval
- Jardiance reduces HbA1c by 0.7–0.8% and causes modest weight loss of 2–3 kg
- The 10mg dose provides most benefit — 25mg adds minimal additional effect for most patients
- Jardiance is NOT recommended with eGFR below 30 ml/min/1.73m²
What Is Jardiance?
Jardiance is the brand name for empagliflozin — an SGLT2 inhibitor that has become one of the most important drugs in cardiovascular and kidney medicine, not just diabetes. The EMPA-REG OUTCOME trial in 2015 was a turning point: it showed Jardiance reduces cardiovascular death by 38% in people with Type 2 diabetes and established CVD — the first diabetes drug to show such a dramatic mortality benefit.
38%
Reduction in cardiovascular death (EMPA-REG OUTCOME)
35%
Reduction in heart failure hospitalisation (EMPEROR)
50%
Slower kidney disease progression (EMPA-KIDNEY)
What Jardiance Is Approved For
| Indication | Approved UK | Approved USA | Key Evidence |
|---|---|---|---|
| Type 2 diabetes | Yes | Yes | EMPA-REG |
| Heart failure (HFrEF) | Yes | Yes | EMPEROR-Reduced |
| Heart failure (HFpEF) | Yes | Yes | EMPEROR-Preserved |
| Chronic kidney disease | Yes (2023) | Yes (2023) | EMPA-KIDNEY |
Dosing
- Jardiance 10mg: Standard dose for all indications — provides most of the cardiovascular and kidney benefit
- Jardiance 25mg: Slightly more glucose lowering and weight loss — minimal additional cardiovascular benefit. Use when more glucose lowering needed.
- Take in the morning — mild diuretic effect is better managed during the day
- With or without food — no significant impact on absorption
Side Effects
- Genital mycotic infections: 10–15% women, 5% men — yeast infections due to glucosuria. Treat with antifungal; improved hygiene reduces risk.
- UTIs: Slight increase — stay well hydrated
- Volume depletion: Mild diuretic — may lower blood pressure; monitor especially if also on diuretics
- DKA: Rare — follow sick day rules (stop during illness, fasting, surgery)
Who Should Take Jardiance?
- Type 2 diabetes + existing cardiovascular disease — strong evidence for mortality benefit
- Type 2 diabetes + heart failure — reduces hospitalisation and prolongs life
- Type 2 diabetes + CKD (eGFR 20–45) — slows progression
- Heart failure patients without diabetes — now approved and guideline-recommended
- CKD patients without diabetes — approved as first non-diabetes indication in 2023
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Is Jardiance better than metformin?▼
They work differently and are complementary rather than directly comparable. Metformin remains first-line for glucose lowering (cheapest, most evidence, weight-neutral). Jardiance is added for cardiovascular or kidney protection. In people with established CVD or heart failure, Jardiance provides benefits metformin does not. Most patients with T2D + CVD should be on both.
How quickly does Jardiance work?▼
Blood sugar lowering begins within 24 hours. Cardiovascular benefits in the EMPA-REG trial became apparent within 3 months and continued to accumulate. Kidney protection effects take longer to manifest as slowed progression rate. The initial eGFR dip (3–5 points) when starting Jardiance is haemodynamic, not damage, and should not prompt discontinuation.
Can Jardiance be taken with metformin?▼
Yes — Jardiance + metformin is one of the most common combinations in Type 2 diabetes management. They have completely complementary mechanisms and additive glucose-lowering effects. The combination is available as a fixed-dose tablet (Synjardy — empagliflozin + metformin) for convenience.
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⚕️ Medical Disclaimer: This article is for informational purposes only. Always consult a qualified healthcare professional before starting or changing any medication or treatment.
Dr
Dr. Priya Sharma, MD
WellCalc Medical Contributor
All articles reviewed by qualified healthcare professionals following NHS, AHA, and WHO guidelines.