K-numberK260355
Device nameWebest Multi-Drug Urine Cup; Webest Home Multi-Drug Urine Cup
ApplicantWEBEST Biotech,, LLC
Product codeNFT
Device classClass II
Decision dateMar 9, 2026
DecisionSubstantially Equivalent
Regulation862.3100
AI Summary extracted from FDA summary PDF · never regenerated
Intended use

The Webest Multi-Drug Urine Cup and Webest Home Multi-Drug Urine Cup are rapid lateral flow immunoassays for qualitative detection of multiple drugs of abuse in human urine. The devices can detect up to 19 different analytes including amphetamine, cocaine, opioids, benzodiazepines, cannabinoids, and other controlled substances at specified cutoff concentrations. Results are preliminary only and require confirmatory testing by GC-MS or LC-MS.

Technological characteristics

Both devices use competitive binding lateral flow immunochromatographic assay methodology with monoclonal antibodies. The devices are cup-format immunoassays in ready-to-use format sealed with desiccant sachets in aluminum pouches. They can be configured as single or multi-test cups with any combination of up to 19 analytes, with or without on-board adulteration/specimen validity tests.

Test standards cited

Not stated in this summary.

Substantial equivalence argument

The Webest devices are substantially equivalent to the AllTest Multi-Drug Rapid Test Cup (K244043) predicate because they use identical methodology (competitive binding lateral flow immunoassay), same specimen type (human urine), same intended use (qualitative detection for over-the-counter use), same test cup configuration, and nearly identical target drugs and cutoff values. Comprehensive performance data including precision, specificity, method comparison to LC-MS/MS, and lay-user studies demonstrate equivalent analytical performance to the predicate.

Extracted by AI from the official FDA summary PDF →
Source

View the full FDA submission: accessdata.fda.gov

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