Reported Reactions

Devices › Pump, infusion, insulin

Device brand name · V-go

V-Go Disposable Insulin Delivery Device: medical device reports filed with FDA

2,101 reports name it, 2012–2026. Manufacturer given most often on reports: Valeritas. Product code LZG.

2,101
device reports naming the brand
0% of all MAUDE reports · about 149 a year
14
reports, 12 months to August 2026
45 in the 12 months before
75.5%
classified as malfunction
81.6% across the product code
1%
classified as death, as reported
22 reports · not verified by FDA

2,101 medical device reports received by FDA name the brand "V-Go Disposable Insulin Delivery Device" (v-go); the manufacturer given most often on reports is Valeritas; received from June 2012 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

14 reports arrived in the 12 months to August 2026, down 69% from 45 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (75.5%), injury (23.5%) and death (1%); across all pump, infusion, insulin reports (product code LZG) death is recorded in 0.3% and malfunction in 81.6%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are premature separation (34.2%), activation, positioning or separation problem (21.3%) and insufficient device problem information (12.7%). The patient problems coded most often are hyperglycemia, hypoglycemia and elevated ketones/ diabetic ketoacidosis. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

01631Sep 2021: 31Oct 2021: 18Nov 2021: 14Dec 2021: 42022Jan 2022: 10Feb 2022: 11Mar 2022: 15Apr 2022: 14May 2022: 15Jun 2022: 18Jul 2022: 5Aug 2022: 25Sep 2022: 22Oct 2022: 14Nov 2022: 10Dec 2022: 52023Jan 2023: 5Feb 2023: 8Mar 2023: 8Apr 2023: 10May 2023: 10Jun 2023: 18Jul 2023: 19Aug 2023: 17Sep 2023: 14Oct 2023: 13Nov 2023: 9Dec 2023: 62024Jan 2024: 9Feb 2024: 9Mar 2024: 4Apr 2024: 2May 2024: 4Jun 2024: 9Jul 2024: 10Aug 2024: 8Sep 2024: 7Oct 2024: 5Nov 2024: 6Dec 2024: 52025Jan 2025: 3Feb 2025: 1Mar 2025: 2Apr 2025: 2May 2025: 4Jun 2025: 3Jul 2025: 3Aug 2025: 4Sep 2025: 1Oct 2025: 2Nov 2025: 0Dec 2025: 12026Jan 2026: 1Feb 2026: 1Mar 2026: 0Apr 2026: 1May 2026: 0Jun 2026: 4Jul 2026: 2Aug 2026: 1

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

03016012012: 320122013: 72014: 1520142015: 82016: 1020162017: 72018: 17120182019: 6012020: 46220202021: 4022022: 16420222023: 1372024: 7820242025: 262026: 102026

Event type and report source

Event type, as classified on the report

Death1%22
Injury23.5%493
Malfunction75.5%1,586
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%2,101
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 539,975 reports carrying product code LZG. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Premature separation71934.2%0.1%
Activation, positioning or separation problem44721.3%2%
Insufficient device problem information26712.7%5%
Excess flow or over-infusion70.3%0.3%
Infusion or flow problema problem with flow or infusion60.3%0.2%
Insufficient flow or under infusion50.2%0.3%
Patient device interaction problem50.2%0.1%
Improper or incorrect procedure or method30.1%1.1%
Device operates differently than expectedthe device behaved unexpectedly20.1%4.7%
Fluid/blood leak20.1%2.2%
Detachment of device or device componentpart of the device came off10%0.2%
Device expiration issue10%0%
Failure to adhere or bond10%0.4%
Failure to prime10%2.7%
Inaccurate delivery10%1.7%
Loss of or failure to bond10%4.6%
Mechanical problema mechanical problem10%3.5%
Off-label use10%0%
Physical resistance/sticking10%0.1%
Separation failure10%0%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Hyperglycemiahigh blood sugar22310.6%
Hypoglycemialow blood sugar1828.7%
Elevated ketones/ diabetic ketoacidosis492.3%
Painpain, site not specified442.1%
Deaththe patient died; cause not stated by this term180.9%
Skin inflammation/ irritation130.6%
Needle stick/puncture80.4%
Discomfortdiscomfort70.3%
Confusion/ disorientation50.2%
Nauseafeeling sick50.2%
Vomitingbeing sick50.2%
Abrasion40.2%
Cellulitisa skin infection40.2%
Headachehead pain40.2%
Loss of consciousnesspassing out40.2%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureV-Go Disposable Insulin Delivery DeviceProduct code LZGAll MAUDE reports
Reports2,101539,97526,136,888
Share of that pool—0.4%0%
Classified as death, per 1,000 reports1039
Classified as injury23.5%17.8%36.2%
Classified as malfunction75.5%81.6%62.3%
Filed by the manufacturer100%99.8%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code LZG

BrandReportsLatest 12 monthsClassified as death
Onetouchping Glucosemgmtsystem98,94500.1%
Omnipod DASH Insulin Management System62,6465,5630.1%
Tandem T Slim Insulin Delivery System55,20700.1%
OmniPod Insulin Pump45,2721450.3%
Omnipod Insulin Management System37,5822180.1%
Animas Vibe88,70300%
Animas Insulin Infusion Pump26,29300.3%
MMT-712 PARADIGM Insulin Pump25,7814,1380%
Accu-Chek Spirit Combo21,25200.1%
t:slim Insulin Delivery System19,277300.1%
t:slim X2 Insulin Pump31,159860%
Animas Insulin Cartridge12,10500%
T Flex Insulin Delivery System11,35900.1%
Paradigm Insulin Infusion Pump16,32400.4%
Accu-Chek Spirit8,82600.3%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about V-Go Disposable Insulin Delivery Device reports

How many FDA reports name V-Go Disposable Insulin Delivery Device?

2,101 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 14 in the latest 12 months.

What kinds of events are reported?

malfunction (75.5%), injury (23.5%) and death (1%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

premature separation (34.2%), activation, positioning or separation problem (21.3%), insufficient device problem information (12.7%), excess flow or over-infusion (0.3%) and infusion or flow problem (0.3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that V-Go Disposable Insulin Delivery Device was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.