甜樺木

貓咪可能出現的症狀

由嚴重到輕微排列。

1. 1
   發抖、震顫、步態不穩（共濟失調）、倒地以及癲癇發作 Not explicitly specified. · Essential oils can severely impact the central nervous system. If the toxicity progresses to collapse or seizures, it is an extreme, life-threatening emergency.
2. 2
   肝衰竭（及嚴重的器官損傷） Not explicitly specified. · Because cats lack the specific liver enzymes to process these compounds, the toxins build up and cause severe internal damage. In extreme cases, this leads to complete liver failure and death.
3. 3
   皮膚疼痛、發紅或化學灼傷 Not explicitly specified in the sources. · This occurs from direct physical contact with the essential oil. The sources warn that even if there is no visible damage to the skin, you should not assume the cat is safe, as the oil can still be absorbed or ingested during grooming.
4. 4
   嘔吐 Not explicitly specified. · Vomiting is a common sign of systemic toxicity or gastrointestinal irritation after the cat swallows the oil.
5. 5
   呼吸困難或張口呼吸 Not explicitly specified. · While toxic effects from simply inhaling diluted oils are rare, the risk of respiratory distress increases significantly if the cat inhales nebulized or ultrasonically diffused neat (undiluted) essential oils, or if the cat has a pre-existing medical condition like asthma.
6. 6
   嗜睡、沮喪或精神沉鬱 Not explicitly specified. · This indicates a severe systemic reaction to the toxins in the bloodstream.
7. 7
   劇烈流口水 Not explicitly specified. · This is often an immediate reaction to tasting or swallowing the bitter, irritating oil, which can happen if a cat licks the oil off its fur or drinks from a reed diffuser.

重要提醒

甜樺（Betula lenta）和其他樺木一樣，含有水楊酸鹽，這是與阿斯匹靈相關的化合物。雖然啃咬樹皮或樹葉可能引起問題，但對貓來說，最大的危險來自高度濃縮的甜樺精油。 這種精油毒性極強，因為貓缺乏有效代謝水楊酸鹽所需的特定肝臟酵素。當貓咪透過皮膚接觸、從薰香機吸入，或在理毛時舔入，這些化合物會在牠們體內累積至中毒水平，導致肝衰竭等嚴重健康問題。 接觸到樺木精油是獸醫緊急情況。中毒跡象包括嘔吐、呼吸急促、虛弱、顫抖和癲癇。切勿將樺木精油塗抹在貓身上或在室內擴香，並確保所有精油產品都安全存放在貓無法觸及的地方。若懷疑貓咪接觸到，請立即聯絡獸醫。

• 有毒化合物：柳酸甲酯（在甜樺木精油中含量高達 98%）；樹皮和葉片中的濃度較低
• 機制：貓無法透過葡萄糖醛酸途徑有效代謝柳酸鹽，導致毒性蓄積；抑制前列腺素合成，影響消化道和腎臟
• 症狀：嘔吐、腹瀉、呼吸急促、虛弱、震顫；嚴重者會導致消化道出血、代謝性酸中毒和腎衰竭
• 樺木精油濃度極高且非常危險——絕不可塗抹於貓咪身上或在附近擴香
• 如果貓咪接觸到樺木油或精油產品，請立即聯繫您的獸醫師