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When managing diabetes, it's crucial to be aware of potential risks associated with glucose monitoring devices and related products. Using unauthorized or unapproved devices can lead to inaccurate blood sugar readings, resulting in improper insulin dosing and serious health complications. For instance, the U.S. Food and Drug Administration (FDA) has warned against the use of unauthorized continuous glucose monitoring systems and insulin pumps, as they may cause severe low blood sugar, coma, diabetic ketoacidosis, and even death.

Similarly, Health Canada has cautioned against unauthorized blood glucose-reading smartwatches, which have not been evaluated for safety and effectiveness. These devices may provide false readings or fail to deliver timely alerts, potentially leading to mismanagement of diabetes and severe health consequences, including loss of consciousness, seizures, coma, and death.

Additionally, the FDA has identified risks associated with certain dietary supplements marketed for blood glucose management. Some products have been found to contain hidden prescription drug ingredients like glyburide and metformin, which can cause unsafe drops in blood sugar levels (hypoglycemia) and a rare but serious condition called lactic acidosis. These risks are particularly significant for individuals with chronic kidney disease.

Furthermore, specific glucose monitoring devices have been recalled due to safety concerns. For example, Abbott's FreeStyle Libre readers were reported to have issues with lithium-ion batteries, leading to overheating and fire risks. Users are advised to use only the Abbott-provided USB cable and power adapter to mitigate these risks.

In another case, Dexcom recalled over 700,000 continuous glucose monitoring receivers due to a defect that prevented audible alarms. This malfunction posed serious risks, as users might not be alerted to dangerous blood sugar levels, leading to severe injuries such as seizures and loss of consciousness.

To ensure safety, always use glucose monitoring devices and related products that have been approved by relevant health authorities. Consult with healthcare professionals before incorporating new devices or supplements into your diabetes management plan.

Managing blood glucose levels is crucial for individuals with diabetes, and it's important to be aware of how various medications and substances can influence these levels. Certain drugs and supplements can either raise or lower blood glucose, potentially leading to complications if not properly managed.

Medications That May Increase Blood Glucose Levels:

• Corticosteroids: Often prescribed for inflammatory conditions, corticosteroids can elevate blood glucose by opposing insulin action.

• Thiazide Diuretics: Used to treat high blood pressure, these diuretics may interfere with glucose control, leading to hyperglycemia.

• Beta-Blockers: While primarily used for heart conditions, beta-blockers can mask symptoms of low blood sugar and may also affect glucose metabolism.

• Atypical Antipsychotics: Medications like clozapine have been associated with increased blood glucose levels.

Medications That May Decrease Blood Glucose Levels:

• Sulfonylureas and Meglitinides: These diabetes medications stimulate insulin secretion and can increase the risk of hypoglycemia, especially when combined with other glucose-lowering agents.

• Fluoroquinolone Antibiotics: Certain antibiotics, such as Levofloxacin, can cause low blood glucose levels, particularly in older adults or those with kidney issues.

• Beta-Blockers: In some cases, beta-blockers can enhance insulin's effects, leading to hypoglycemia.

Supplements and Other Substances:

• Alcohol: Consuming alcohol can interfere with blood glucose regulation, potentially leading to both high and low blood sugar levels.

• Certain Herbal Supplements: Supplements like Ginseng and ginger may enhance glucose-lowering effects, increasing the risk of hypoglycemia.

Continuous Glucose Monitors (CGMs) and Medication Interference:

Some medications can affect the accuracy of CGMs. For instance:

• Acetaminophen (Tylenol): High doses may cause false high glucose readings in certain CGM models.

• Vitamin C: Large doses can interfere with glucose readings, potentially leading to inaccurate results.

Recommendations:

• Consult Healthcare Providers: Always inform your doctor and pharmacist about all medications and supplements you're taking to assess potential interactions.

• Monitor Blood Glucose Regularly: Keep a close eye on your blood sugar levels, especially when starting new medications or supplements.

• Be Aware of Symptoms: Recognize signs of both high and low blood sugar to address issues promptly.

By staying informed and vigilant, you can better manage your blood glucose levels and reduce the risk of complications associated with medication and supplement interactions.