Did your eGFR dip a few points in the first month after starting Jardiance (empagliflozin) or Farxiga, and how do you handle hydration?

My cardiologist added empagliflozin 10 mg to my Metformin for kidney and heart protection. At my 4-week metabolic panel, my eGFR went from 62 down to 56, which scared me at first. My doctor explained that SGLT2 inhibitors intentionally lower intraglomerular pressure inside the kidney filters—causing a small, reversible 3–6 point 'hemodynamic dip' right at the start before preserving kidney function long-term. Sure enough, by week 12 my eGFR stabilized at 60 and my urine albumin ratio improved. For anyone taking an SGLT2 inhibitor: what did your lab trend look like over the first 3–6 months, and what daily water or hygiene habits kept you side-effect free?

⚕ Pinned FDA / NIH / PubMed Clinical Context • Kittisak Charoen — Health Research Writer

In the EMPA-KIDNEY and CREDENCE trials, an acute reversible eGFR dip of 3–5 mL/min/1.73m² during weeks 2–4 reflects reduced glomerular hyperfiltration via tubuloglomerular feedback. A drop <30% from baseline is expected and protective; patients should hold SGLT2 inhibitors during acute dehydrating illness or 3–4 days before surgery.

Connected Clinical Guides: Condition: Type 2 Diabetes Condition: Hypertension Rx: Empagliflozin Rx: Dapagliflozin Rx: Metformin

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Verified Peer Replies (3)

@GreatLakesKayak_MI • 60+M • Empagliflozin 10 mg • Week 40

My nephrologist warned me ahead of time so I wouldn't freak out when my patient portal pinged! Mine dipped from 54 to 49 at week 3, then sat rock-steady at 52 for the past nine months while my uACR dropped in half.

@SunbeltGardener_FL • 45–59F • Dapagliflozin 10 mg • Week 22

Two practical rules that helped me: (1) take it first thing in the morning with a full 16 oz glass of water so you aren't waking up twice at night to pee, and (2) rinse with water or use a bidet because you're excreting real glucose in your urine.

@OzarkCyclist_MO • 45–59M • Empagliflozin 10 mg • Week 18

Also remember the 'Sick Day Rule'—when I caught a stomach bug last month and couldn't keep fluids down, my endocrinologist had me pause Jardiance for 3 days until I was eating and drinking normally again to prevent euglycemic ketoacidosis.