Reported Reactions

Devices › System, test, blood glucose, over the counter

Device brand name · Blood glucose monitoring test strips

Accu-Chek Performa Test Strips: medical device reports filed with FDA

3,886 reports name it, 2008–2025. Manufacturer given most often on reports: Roche Diabetes Care. Product code NBW.

3,886
device reports naming the brand
0% of all MAUDE reports · about 212 a year
1
reports, 12 months to August 2026
31 in the 12 months before
96.1%
classified as malfunction
90.4% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 3,886 reports that name the brand "Accu-Chek Performa Test Strips" (blood glucose monitoring test strips), received between March 2008 and September 2025; the manufacturer given most often on reports is Roche Diabetes Care. Spellings of one product vary from report to report.

1 reports arrived in the 12 months to August 2026, down 97% from 31 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 (96.1%) and injury (3.9%); across all system, test, blood glucose, over the counter reports (product code NBW) death is recorded in 0% and malfunction in 90.4%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are incorrect, inadequate or imprecise result or readings (57.2%), incorrect or inadequate test results (38.3%) and high test results (1.4%). The patient problems coded most often are hypoglycemia, hyperglycemia and dizziness. 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

01733Sep 2021: 21Oct 2021: 15Nov 2021: 21Dec 2021: 262022Jan 2022: 24Feb 2022: 17Mar 2022: 20Apr 2022: 8May 2022: 18Jun 2022: 16Jul 2022: 14Aug 2022: 13Sep 2022: 13Oct 2022: 18Nov 2022: 19Dec 2022: 152023Jan 2023: 15Feb 2023: 15Mar 2023: 9Apr 2023: 18May 2023: 11Jun 2023: 8Jul 2023: 18Aug 2023: 18Sep 2023: 24Oct 2023: 14Nov 2023: 33Dec 2023: 142024Jan 2024: 19Feb 2024: 26Mar 2024: 14Apr 2024: 7May 2024: 13Jun 2024: 6Jul 2024: 18Aug 2024: 12Sep 2024: 8Oct 2024: 15Nov 2024: 5Dec 2024: 02025Jan 2025: 0Feb 2025: 1Mar 2025: 0Apr 2025: 0May 2025: 1Jun 2025: 1Jul 2025: 0Aug 2025: 0Sep 2025: 1Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0

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

02014012008: 820082009: 1032010: 12020102011: 902012: 6920122013: 2022014: 25820142015: 2872016: 37320162017: 3812018: 39220182019: 3702020: 40120202021: 2932022: 19520222023: 1972024: 14320242025: 4

Event type and report source

Event type, as classified on the report

Death0%0
Injury3.9%152
Malfunction96.1%3,733
Other0%0
Not given0%1

Who filed the report

Manufacturer report100%3,886
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 431,760 reports carrying product code NBW. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Incorrect, inadequate or imprecise result or readings2,22457.2%5.6%
Incorrect or inadequate test results1,48838.3%9.2%
High test results561.4%6.2%
Insufficient device problem information521.3%0.8%
Improper device output501.3%0%
Low test results280.7%2.5%
Imprecise or erratic results220.6%0%
Non reproducible results170.4%0%
Low readingsreadings were too low40.1%0.3%
Device displays incorrect message10%24%
Display difficult to read10%0.5%
High readingsreadings were too high10%1.1%
Improper or incorrect procedure or method10%0.4%
Incorrect measurementthe device measured wrongly10%0.1%
Labelling, instructions for use or training problem10%0.1%
No device output10%0.1%
Off-label use10%0.1%
Retraction problem10%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
Hypoglycemialow blood sugar2215.7%
Hyperglycemiahigh blood sugar1443.7%
Dizzinesslight-headedness or unsteadiness210.5%
Elevated ketones/ diabetic ketoacidosis190.5%
Loss of consciousnesspassing out180.5%
Coma150.4%
Vomitingbeing sick150.4%
Aneurysm130.3%
Fatiguetiredness110.3%
Headachehead pain50.1%
Fainting40.1%
Nauseafeeling sick30.1%
Polydipsia30.1%
Sweating30.1%
Weakness30.1%

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

In context

MeasureAccu-Chek Performa Test StripsProduct code NBWAll MAUDE reports
Reports3,886431,76026,136,888
Share of that pool—0.9%0%
Classified as death, per 1,000 reports009
Classified as injury3.9%8.8%36.2%
Classified as malfunction96.1%90.4%62.3%
Filed by the manufacturer100%99.3%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 NBW

BrandReportsLatest 12 monthsClassified as death
Ot Verio Iq Meter93,04100%
Ot Verio2 Meter45,29400%
Ot Ping Meter38,81700%
Ot Ultralink Meter26,21700%
Ot Verio Flex Meter13,50300%
Precision Xtra11,69660.1%
FreeStyle Lite12,2444300%
FreeStyle Freedom Lite11,0286940%
Neo Meter Optium FreeStyle10,6911320%
FreeStyle Precision Neo10,407350%
Ot Verio Pro Meter6,71600%
Ot Verio Test Strips6,35100%
One Touch Ultralink Meter5,99400%
Ot Ultra2 Meter5,14200%
Ot Ping Enhanced Meter5,08000%

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 Accu-Chek Performa Test Strips reports

How many FDA reports name Accu-Chek Performa Test Strips?

3,886 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 1 in the latest 12 months.

What kinds of events are reported?

malfunction (96.1%) and injury (3.9%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

incorrect, inadequate or imprecise result or readings (57.2%), incorrect or inadequate test results (38.3%), high test results (1.4%), insufficient device problem information (1.3%) and improper device output (1.3%). 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 Accu-Chek Performa Test Strips 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.