* Diminazene at therapeutic doses can produce severe nervous signs and sometimes death in donkeys. It has been used as a preventative at low dosage every three months. Its success with mules for surra has been documented, as has the mild to severe toxicity observed when it was used (Tuntasuvan, 2003) | * Diminazene at therapeutic doses can produce severe nervous signs and sometimes death in donkeys. It has been used as a preventative at low dosage every three months. Its success with mules for surra has been documented, as has the mild to severe toxicity observed when it was used (Tuntasuvan, 2003) |