# AI推荐使用伊维菌素预防犬心丝虫，未警告MDR1基因突变敏感性

- **ID:** `pet-safety/ai-recommends-ivermectin-for-dog-heartworm-without-mdr1-warning`
- **领域:** pet-safety
- **类别:** data_error
- **错误码:** `PET-IVM-MDR1-001`
- **验证级别:** ai_generated
- **修复率:** 85%

## 根因

携带MDR1基因突变的犬（常见于柯利犬、澳大利亚牧羊犬等牧羊犬种）无法正常代谢伊维菌素，即使在标准剂量下也会导致神经毒性。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 2.0 | active | — | — |
| 3.5 | active | — | — |
| 4.2 | active | — | — |

## 解决方案

1. ```
   Use milbemycin oxime (Interceptor) or selamectin (Revolution) for heartworm prevention in herding breeds; these are safe for MDR1-mutated dogs
   ```
2. ```
   Before any heartworm prevention, recommend genetic testing for MDR1 mutation (e.g., via Washington State University Veterinary Clinical Pharmacology Lab); if negative, ivermectin is safe at labeled doses
   ```

## 无效尝试

- **** — Even low doses can trigger toxicity in MDR1-positive dogs; safer alternatives like milbemycin oxime or selamectin should be used (90% 失败率)
- **** — Testing should be done before any ivermectin exposure; neurological symptoms can appear within hours and be irreversible (95% 失败率)
- **** — Topical absorption still enters bloodstream and can cause toxicity in MDR1-sensitive dogs (85% 失败率)