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Milkweed
Asclepias spp.
Milkweed (Asclepias spp.) is a toxic plant for cats due to cardenolide cardiac glycosides — potent compounds found throughout the plant, with the highest concentration in the milky latex sap. These compounds act on the heart in a manner similar to Foxglove, disrupting the electrical signals that regulate heartbeat. All parts including dried plant material remain toxic.
重要提醒
Toxic compounds: cardenolide cardiac glycosides in latex sap, leaves, and stems
Mechanism: cardenolides inhibit the Na+/K+-ATPase pump in cardiac muscle cells, causing arrhythmias
Symptoms: drooling, vomiting, weakness, abnormal heart rate, muscle tremors; severe cases may cause seizures and cardiac failure
The milky latex sap is the most concentrated source — avoid contact with broken stems
Seek veterinary care promptly; cardiac glycoside toxicity can escalate rapidly
可能有毒部位
Sap
All parts of the plant
貓咪可能出現的症狀
Abnormal heart rates and rhythms (including bradycardia, tachycardia, and severe arrhythmias)
Cardiac · Within 2 hours
Vomiting and diarrhea
Gastrointestinal · Within 2 hours
Weakness and unspecified neurological signs
Neurological · Within 2 hours
Breathing difficulties (dyspnea)
Respiratory · Within 2 hours (or developing as the condition worsens).
Organ damage
Renal · Delayed (typically develops as symptoms persist over 4–5 days).
免責聲明：此摘要彙整自多個來源，僅供資訊參考，不構成診斷或治療計畫。毒性會因物質、攝入量、植物部位與個別貓咪狀況而異。若你懷疑貓咪接觸到有毒物質，請立即聯絡獸醫。