Diabetics Injured by Abbott FreeStyle Libre 3 Sensor Glucose Monitors Invited to Contact W&L

Weitz & Luxenberg is now accepting clients harmed by Abbott FreeStyle Libre 3 Sensor and FreeStyle Libre 3 Sensor Plus, widely used continuous glucose monitoring (CGM) devices that have experienced “sensors issues” causing inaccurate readings.

These issues put you — and your life — at risk. If you were harmed, reach out to Weitz & Luxenberg, so we can get you the justice and compensation you deserve.

If you are an insulin dependent diabetic, you rely on medical devices to help monitor your blood glucose levels. The accuracy of these devices is critical to maintaining your health and avoiding life-threatening consequences.

Abbott Diabetes Care, Inc., the manufacturer of FreeStyle Libre 3 and FreeStyle Libre 3 Plus CGMs, “has reported 736 serious injuries, and seven deaths associated” with the sensors for these devices. These were the totals as of November 14, 2025. ⁽¹⁾

“Manufacturers should be responsible for the harm their defective products inflict on their customers. When that happens, Weitz & Luxenberg holds them accountable,” says Ellen Relkin, partner and chair of W&L’s Drug and Medical Device Litigation practice group.

Sensor Issues Provide Wrong Glucose Readings

On July 24, 2024, Abbott announced a voluntary medical device correction for FreeStyle Libre 3 sensors in the U.S. The correction was issued for sensors that “may provide incorrect high glucose readings.” ⁽²⁾

Users of some of the Abbott medical devices, “were receiving erroneously high glucose results,” according to a July 2024 voluntary recall the U.S. Food & Drug Administration (FDA) reported. ⁽³⁾

“The inaccurate higher glucose values may lead to users calculating higher insulin bolus correctional doses based on inaccurate CGM glucose data,” explains the FDA. ⁽⁴⁾ This means diabetics may give themselves the wrong amount of medication.

Then, a November 24, 2025 press release from the manufacturer, acknowledged the sensors also can “provide incorrect low glucose readings.” This information was also contained in a letter sent to customers. ^{(5) (6)}

Patients Suffer Negative Health Consequences

Diabetics must keep their blood sugars stable in order to avoid dangerous consequences to their health. A low or high blood sugar can cause difficulties that can even prove fatal. An inaccurate CGM puts you at serious risk.

For diabetics, the recommended blood sugar range is 80 to 130 mg/dl before eating (fasting) and lower than 180 mg/dl at 1 to 2 hours after eating. ⁽⁷⁾

If the inaccurate glucose reading is high, and the actual reading is “trending low or is lows” patients “may not be able to confirm the actual glucose with a self-monitored blood glucose” meter or administer the correct intervention, warns the FDA. ⁽⁸⁾ The same is true for an inaccurate low glucose reading.

Abbott acknowledges that “If undetected, incorrect low glucose readings over an extended period may lead to incorrect treatment decisions for people living with diabetes, such as excessive carbohydrate intake or skipping or delaying insulin doses. These decisions may pose serious health risks, including potential injury or death, or other less serious complications.” ⁽⁹⁾

Acute consequences of out-of-control glucose levels in diabetics include immediate symptoms like increased thirst and urination, blurred vision, fatigue, fruity-smelling breath, hyperventilation (deep labored breathing), and rapid heartbeat, as well as life-threatening conditions such as diabetic ketoacidosis (DKA). ⁽¹⁰⁾

The over- delivery or missed delivery of insulin can result in: ⁽¹¹⁾

• Death.
• Central nervous system dysfunction.
• Loss of consciousness or coma.
• Seizures.
• Permanent neurological damage.

If you use a FreeStyle Libre 3 Sensor or FreeStyle Libre 3 Plus CGM device, you also need to determine if your device’s sensor is one of the ones that is not functioning correctly. If you did not receive a letter from Abbott, you can go on their website’s November 24, 2025 press release to learn how to determine if your device is one of the 3 million defective devices.

You can also visit www.FreeStyleCheck.com to confirm whether your sensor is affected by this medical device correction.

Abbott advises that “If consumers are currently wearing or have a sensor that has been confirmed as potentially impacted on www.FreeStyleCheck.com or by a customer service representative, they should immediately discontinue use and dispose of it.” ⁽¹²⁾

While certainly use of that device should be discontinued, do not “dispose of it” if you have a health problem that may be related, because you will be discarding essential evidence. Instead, preserve it in a safe place. If you have any health concerns you should, of course, contact your doctor right away.

W&L Can Help People Injured by Defective FreeStyle Libre 3 Sensors

Our law firm helps victims of defective medical devices, like the FreeStyle Libre 3 Sensor or FreeStyle Libre 3 Plus Sensor. W&L has a long and successful history of fighting for our clients’ rights and helping you obtain compensation for your injuries.

We have been litigating defective medical device cases for the past 40 years, winning verdicts and negotiating settlements of billions of dollars for clients. For example, we negotiated a $2.5 billion settlement for patients whose DePuy hip implants failed. 

If you or a loved one have been seriously harmed by a defective FreeStyle Libre 3 Sensor or FreeStyle Libre 3 Plus Sensor, reach out to us today by calling (917) LAWYERS or filling out the form on this page. Your initial consultation is free of charge, and our attorneys are eager to help.