GB 31650-2019 MRL × FDA ADE：地美硝唑（Dimetridazole）
Cross-reference between China's veterinary-drug residue limit standard (GB 31650-2019, 食品中兽药最大残留限量) and the US FDA CVM adverse-event (ADE) report database (openFDA animalandveterinary/event.json). This is a structural link, not a clinical assertion.
Zero-tolerance entry (GB 31650-2019, first-hand national standard text)
- 地美硝唑（Dimetridazole） — 残留标志物: 地美硝唑（Dimetridazole） · 动物种类: 所有食品动物 · 靶组织: 所有可食组织 · 不得在动物性食品中检出 (zero-tolerance).
- *The drug name and the zero-tolerance phrase are verbatim (whitespace-normalized) substrings of the landed GB 31650-2019 source text
pdf-raw/vet-drug-mrl/cn_gb31650.txt. No numeric MRL is set — detection in any edible tissue of food-producing animals is prohibited.*
OpenFDA ADE cross-reference
- OpenFDA ADE 报告数（dimetridazole）：0（截至 2026-08-16，openFDA 中以“dimetridazole”为活性成分无检索结果）。
Honest scope note
GB 31650-2019 is a food (residue-limit) standard, not a feed-additive standard — it governs residues in animal-derived *food* (meat, liver, kidney, fat, milk, egg). Its pet-food relevance is indirect: animal-origin pet-food ingredients (meat meal, poultry by-product, fish, egg, dairy) must comply. The ADE count reflects US spontaneous-reporting volume, not incidence or per-animal risk, and may not include China-specific products or trade names. Active-ingredient→OpenFDA term mapping is editorial; a 0 or low count may reflect openFDA ingredient naming rather than true absence of reports. Source: GB 31650-2019 source text cn_gb31650.txt + openFDA slice cn_gb31650_ade_2026-08-16.json (both pulled 2026-08-16).