{"topic_id":"ade_vitamin_b12_adverse_events","category":"ade","context":"---\ntopic_id: ade_vitamin_b12_adverse_events\ncategory: ade\ntitle: \"FDA ADE reports for Vitamin B12 (active ingredient) — total reports, species & reaction breakdown\"\nlang: en\nsource: \"openFDA animalandveterinary/event.json (FDA CVM adverse event reports), pulled 2026-07-22\"\nsource_file: pdf-raw/ade/ade_active_ingredients_2026-07-22_b12.json\ndate_parsed: 2026-07-22\ntokens_estimated: 392\nverification:\n  method: substring_match\n  claims: 34\n  passed: 34\n  date: 2026-07-22\n---\n\n# Vitamin B12 — FDA Animal & Veterinary Adverse Event (ADE) Reports\n\nSource: openFDA `animalandveterinary/event.json`, the FDA Center for Veterinary Medicine (CVM) adverse event report database. Data pulled 2026-07-22. Counts are report-level: one report may list multiple reactions and multiple animals, so figures are not additive and do not imply causation. Vitamin B12 is a active ingredient.\n\n## Total reports\nVitamin B12: 721\n\n## Reports by species (top entries)\n- Cat 350\n- Dog 350\n- Human 14\n- Pig 3\n- Cattle 2\n- Horse 1\n\n## Top reported reactions (VEDDRA terms, top entries)\n- Vomiting 148\n- Diarrhoea 109\n- Lethargy (see also Central nervous system depression in 'Neurological') 103\n- Weight loss 100\n- Anorexia 92\n- Death by euthanasia 91\n- Lethargy (see also Central nervous system depression in Neurological) 82\n- Not eating 79\n- Other abnormal test result NOS 77\n- Lack of efficacy - NOS 75\n\nSource JSON: `pdf-raw/ade/ade_active_ingredients_2026-07-22_b12.json` (openFDA animalandveterinary/event.json, pulled 2026-07-22).\n","sources":[],"tokens_estimated":271,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}