Interfering substances and risks
The following medications are known to interfere with the Dexcom G6 and G7 CGM sensors. Learn about the impact on sensor readings and recommendations.
Hydroxyurea
Hydroxyurea is a medication used in the treatment of diseases including cancer and blood disorders; it is known to interfere with sensor readings.
Hydroxyurea is a medication used in the treatment of diseases including cancer and blood disorders; it is known to interfere with sensor readings.
Impact: If you are taking hydroxyurea, your sensor readings will be higher than your actual glucose, which could result in missed hypoglycemia alerts or errors in diabetes management, such as giving yourself a higher dose of insulin due to falsely high sensor glucose values. The level of inaccuracy depends on the amount of hydroxyurea in your body.
Recommendation: Don't use your G7 System for diabetes treatment decisions if you are taking hydroxyurea. Talk to your physician about alternative glucose monitoring approaches.
Acetaminophen
Impact: Taking higher than the maximum dose of acetaminophen (e.g. > 1 gram every 6 hours in adults) may affect the sensor readings and make them look higher than they really are.
Recommendation: The Dexcom G6 and G7 CGM Systems, you can take a standard or maximum acetaminophen dose of 1 gram (1,000 mg) every 6 hours and still use the sensor readings to make treatment decisions.
In previous generations of Dexcom CGM systems (G4/G5), acetaminophen could affect your sensor readings, making them look higher than they really were. There are no reports of Ibuprofen interference with Dexcom CGM.