Most SGLT2 inhibitors are paused before surgery to lower the risk of a serious condition called ketoacidosis. The FDA labels say to withhold Jardiance and Farxiga for at least 3 days, and Steglatro for at least 4 days, before a procedure. Your surgical team makes the final call on the exact timing, and the same team decides when it is safe to restart.
This article gives general information about medication and surgery. It is not medical advice. Consult your doctor or pharmacist for advice specific to your medications. Never stop or restart a prescription on your own. Your surgical team and prescriber decide what happens to your medicines around a procedure.
The Part Nobody Warns You About
Here is the surprise for a lot of people: the harder problem is not stopping your diabetes pill before surgery. It is remembering to start it again afterward.
Before surgery, your clinic usually hands you instructions. Someone tells you which pills to hold. But after you are discharged, you go home tired, sore, and juggling new prescriptions. The pill you paused a few days ago is easy to forget, and nobody is standing there to remind you. That gap is where medication routines fall apart.
So this guide covers both halves. First, why an SGLT2 inhibitor gets paused and for how long. Then, the part most articles skip: how to know when to restart, and how to make sure you actually do.
What Is an SGLT2 Inhibitor?
SGLT2 inhibitors are a group of diabetes medicines that lower blood sugar by making your kidneys pass extra sugar out in your urine. The common ones in the United States are:
- Jardiance (the drug name is empagliflozin)
- Farxiga (dapagliflozin)
- Steglatro (ertugliflozin)
You may also take one inside a combination pill, such as Synjardy or Xigduo. The surgery rule still applies to the SGLT2 part of those. If you are not sure what class your pill is in, your pharmacist can tell you in one phone call.
Why the Hold Exists: Euglycemic Ketoacidosis
The reason for pausing is a problem called diabetic ketoacidosis, or DKA. It happens when the body runs low on usable sugar and starts burning fat for fuel, which floods the blood with acids called ketones. Left unchecked, it is a medical emergency.
SGLT2 inhibitors add a specific twist. Because they keep pushing sugar out through your urine, they can trigger ketoacidosis even when your blood sugar reading looks close to normal. This version is called euglycemic DKA, and it is dangerous because it hides. A near-normal glucose reading can give false comfort. The FDA prescribing information for Jardiance states: "Blood glucose levels at presentation may be below those typically expected for diabetic ketoacidosis (e.g., less than 250 mg/dL)."
Surgery raises this risk. Fasting beforehand, the stress of the procedure, and eating little afterward all push the body toward burning fat. Add an SGLT2 inhibitor, and the odds go up, which is why the labels list surgery as a reason to pause. A regular stomach bug can create the same setup, which is why sick-day rules for Jardiance exist for days you are not eating or drinking normally.
The size of the effect is measurable. In a 2025 retrospective study in the Journal of Pharmaceutical Health Care and Sciences by Takemura and colleagues (N=1,169), 21 patients (1.8%) developed euglycemic DKA around the time of surgery. Among people who stopped their SGLT2 inhibitor at least 3 days before the operation, the rate was 0.2%, compared with 3.7% in those who did not. The hold is not a formality. It appears to change outcomes.
How Many Days: The Answer Depends on the Drug
This is where a lot of blog advice gets it wrong by lumping every SGLT2 inhibitor together. The FDA labels do not. The required hold is longer for the drug that stays in your body longer.
| Medicine (generic) | FDA label: withhold before surgery | Half-life |
|---|---|---|
| Jardiance (empagliflozin) | At least 3 days | Shorter |
| Farxiga (dapagliflozin) | At least 3 days | About 12.9 hours |
| Steglatro (ertugliflozin) | At least 4 days | About 16.6 hours |
The extra day for Steglatro tracks with how long it lingers. The FDA label for Steglatro puts the elimination half-life at "16.6 hours," longer than the "approximately 12.9 hours" listed in the FDA label for Farxiga. More time in the body means more time for the sugar-dumping effect to keep working, so the label asks for a longer pause.
In the labels' own words:
- The Jardiance label states: "Withhold JARDIANCE for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting."
- The Farxiga label states: "Withhold FARXIGA for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting."
- The Steglatro label states: "Withhold STEGLATRO for at least 4 days, if possible, prior to surgery or procedures associated with prolonged fasting."
Notice the phrase "if possible" in every one. These are label targets, not a rule you apply alone. Your surgical team may adjust the plan based on your kidney function, your other medicines, and how urgent the procedure is. If surgery is scheduled on short notice, tell the team you take one of these drugs so they can decide how to protect you.
One more label detail worth knowing: even after you take the last dose, the drug keeps working for a while. The Jardiance label notes that "urinary glucose excretion persists for 3 days after discontinuing JARDIANCE." That lag is exactly why the pause starts several days out instead of the morning of surgery.
The Restart Is a Decision, Not a Default
This is the half of the story that causes real trouble at home. Stopping is easy to plan. Restarting is not, because there is no fixed date printed on a discharge sheet. The green light depends on how your recovery is going.
All three labels use the same restart language. The Jardiance label states: "Resume JARDIANCE when the patient is clinically stable and has resumed oral intake." Farxiga and Steglatro say the same thing about their own drugs. In plain terms, the medicine goes back on when you are stable and eating and drinking normally again, and only when your care team says so.
That means two things for you:
- Do not restart on a guess. If you are still nauseated, barely eating, or feeling off, that is not the moment. Ask your surgeon, your prescriber, or your pharmacist before you take that first dose again.
- Do not forget to ask. This is the quiet failure. People recover, feel fine, and simply never circle back to the paused pill. Weeks later they realize their diabetes medicine has been off the whole time. If you take an SGLT2 inhibitor for heart or kidney protection as well as blood sugar, a long unplanned gap is not harmless.
A good move: before you leave the hospital, ask one direct question. "When and how do I restart my SGLT2 pill?" Write the answer down. Our guide on questions to ask your pharmacist after hospital discharge has more prompts like this, and if the paperwork is a blur, how to read hospital discharge paperwork can help you find the medication section.
A Simple Plan for the Whole Window
You do not need to memorize pharmacology. You need a system that survives a stressful week.
- Confirm the hold with your team. Do not stop based on this article. Get the exact stop date from your surgeon or prescriber, using the label windows above as a reference point.
- Pause your reminders for the hold window so nothing pushes you to take a pill you are meant to skip.
- Set a restart check-in, not a restart dose. Put a reminder on the day you expect to be eating normally again. Its job is to prompt the question "Has my team cleared me to restart?" not to take the pill.
- Get your team's yes, then resume your normal daily reminder.
If your dose habits scattered during recovery, how to get back on track after missing medication walks through rebuilding the routine, and the missed-dose rule for Jardiance covers the everyday version of the same question. Because surgery often comes with new prescriptions, building a medication schedule after hospital discharge is worth a read before life gets busy.
This pause-and-restart pattern is not unique to diabetes pills. Blood thinners follow their own version, covered in stopping Xarelto before dental work. A weekly GLP-1 shot such as Ozempic has different timing, which we explain in when to restart Ozempic after surgery. Metformin has its own separate rules for surgery and for contrast dye scans in stopping metformin before surgery or contrast.
How Pillo Helps Around a Procedure
The hard part of a surgery hold is not the medical decision. It is keeping track of a moving schedule while you feel awful. Pillo keeps that schedule for you.
You can pause your Jardiance alarm for the hold window your team gives you, so it does not push a dose you are supposed to skip. Then you can set a restart-date reminder for the day you expect to be back to eating normally, which prompts you to confirm with your care team before that first dose. The persistent alarm keeps nudging until you respond, so the restart does not slip through the cracks the way it so easily can after discharge. If the drug is still new to you, what to expect in your first week on Jardiance covers the normal early effects.
Download Pillo on Google Play to set up a surgery pause and a restart reminder in one place.
Frequently Asked Questions
Do I need to stop Jardiance before surgery?
Usually yes, but the decision belongs to your surgical team. The FDA label for Jardiance says to "withhold JARDIANCE for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting." This is to lower the risk of ketoacidosis. Always confirm your exact stop date with your surgeon, prescriber, or pharmacist rather than stopping on your own.
How many days before surgery should an SGLT2 inhibitor be held?
It depends on the specific drug. The FDA labels call for withholding Jardiance and Farxiga for at least 3 days, and Steglatro for at least 4 days, before surgery or a procedure with prolonged fasting. Steglatro stays in the body longer, which is why its window is a day longer. Your care team sets the final timing based on your health and the procedure.
Why can SGLT2 inhibitors cause ketoacidosis even with normal blood sugar?
These medicines keep sending sugar out through your urine, so the body can shift to burning fat and making ketones even when a glucose reading looks near normal. This is called euglycemic ketoacidosis. Because the blood sugar number can be misleading, the Jardiance label advises assessing for ketoacidosis regardless of the glucose level when symptoms appear. Get medical help if you feel very unwell, are breathing fast, or are vomiting.
When can I restart my SGLT2 inhibitor after surgery?
When your care team says you are recovered enough. The FDA labels say to resume the medicine "when the patient is clinically stable and has resumed oral intake," meaning you are stable and eating and drinking normally again. There is no fixed number of days. Ask your surgeon or prescriber before restarting, and do not simply resume it on your own.
What happens if I forget to restart my diabetes pill after surgery?
A long unplanned gap is not harmless, especially if the medicine also protects your heart or kidneys. Because there is no set restart date, it is easy to recover and never circle back to a paused pill. Before discharge, ask exactly when and how to restart, write it down, and set a reminder to confirm with your team so the pill does not stay off by accident.
This article provides general information about medication management and is not a substitute for professional medical advice. Always consult your doctor or pharmacist before making changes to your medication schedule.
