Dexcom One Pharmacy FAQ

Blood glucose monitoring via finger pricks gives patients a glucose reading for one static moment in time. It does not provide the patient with their glucose information on any continual basis or provide them with any warning of their glucose going higher or lower than their preferred range. Dexcom One is a continuous glucose monitoring system and instead provides the user with a continuous picture of their glucose readings day and night without them having to use finger pricks^*. Alerts on the Dexcom ONE system enable the user to be warned of highs/lows to treat their diabetes and make it easier for them to keep their glucose levels within the desired range.  

*If your glucose alerts and readings from the Dexcom ONE do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions. 

Dexcom ONE provides the user with a continuous picture of their glucose readings day and night without them having to scan or use finger pricks^*. Instead of the scanning required by a flash glucose monitor, glucose measurements are automatically sent wirelessly from the glucose sensor worn by the user to their smart phone/reader^†. Alerts on the Dexcom ONE system enable the user to be warned of highs/lows to treat their diabetes and make it easier for them to keep their glucose levels within the desired range. This means that users can achieve excellent clinical results^** and no longer have to scan or even use finger pricks^*. All of the alerts are customisable for the user’s needs and preferences.  

* If your glucose alerts and readings from the Dexcom ONE do not match symptoms or expectations, use a blood glucose meter to make diabetes treatment decisions. 

** Dexcom CGM is clinically proven to lower HbA1c and reduce hypoglycemic incidents. Results obtained with a prior generation Dexcom CGM System. 1 Beck RW, et al. JAMA. 2017;317(4):371-378.  

† For a list of compatible smart devices, please visit www.dexcom.com/compatibility. 

NICE now recommends that people with type 1 diabetes are offered a choice of glucose sensor, including rt-CGM.¹  Children and young people with type 1 diabetes should be offered rt-CGM.²  For people with type 2 diabetes the recommendation is that rt-CGM can be considered as an alternative to isCGM.³ 

The Dexcom ONE sensors last up to 10 days and along with the transmitter (re-usable with up to a 3-month battery life) are available on drug tariff if the patient is eligible as per local criteria^*. Dexcom ONE sensors can be prescribed monthly or quarterly. The patient’s transmitter requires changing after 3 months and is also available on prescription.

You can help to reduce packaging and waste by filling prescriptions with boxes of sensors in place of single sensors.1x box of three sensors (421-4722) is equivalent to 3x single sensors (421-4714).

1. Type 1 diabetes in adults: diagnosis and management NICE guideline [NG17]
2. Type 2 diabetes in adults: management NICE guideline [NG28]
3. Diabetes (type 1 and type 2) in children and young people: diagnosis and management
NICE guideline [NG18]

*Local prescribing policies may vary

Pharmacies can order through Alliance Healthcare.

What products are available?

*When filling prescriptions for sensors, please note that Dexcom ONE transmitters are only required by the patient every 3 months. Patients start to be notified of the transmitter battery life 3 weeks prior to needing a replacement and should ask their GP to add Dexcom ONE transmitter to their repeat prescriptions list.

Further information on ordering sensors and transmitters from Alliance Healthcare please click here.

You can help to reduce packaging and waste by filling prescriptions with boxes of sensors in place of single sensors.1 x box of three sensors (421-4722) is equivalent to 3 x single sensors (421-4714).

Dexcom should be contacted directly by the patient and not the pharmacy, specialist centre or GP practice. The patient should report any sensor issues on the day a problem is identified through the Dexcom Technical Support portal, which can be accessed online at: https://dexcom-intl.custhelp.com/app/support_request/. The patient should keep the displaced/faulty Dexcom ONE sensor in case it needs to be returned for investigation.

The shelf life of Dexcom One products is 12 months.

Sensor wear is up to 10 days and the transmitter lasts up to 3 months.

Dexcom ONE can be used with compatible smart devices. Visit the the compatiblity website to view the list.

Dexcom recommend that users follow local guidelines for appropriate disposal.

Please contact Alliance Healthcare regarding their returns policy.

Please contact Alliance Healthcare regarding delivery.

For patients; Short video tutorials on how to set up the device and apply the sensor can be found by clicking on the following link www.dexcom.com/learn.

For Health Care Professionals; More in-depth training materials, patient training resources and information about continuous glucose monitoring for healthcare professionals can be found by clicking on the following link  https://uk.provider.dexcom.com.

Please click here for Dexcom ONE FAQs.