Methyltestosterone
別名: Android, Methitest, Testred, Virilon, Orandrone
### Important Information for Pet Owners * **Purpose**: This medication is a hormone used to treat specific hair loss conditions (like Alopecia X) or to manage certain reproductive issues. * **Liver Risks**: The most serious side effect is liver damage. **Blood tests are required** before starting this medication and regularly during treatment to ensure your pet's liver is handling it well. * **Behavioral Changes**: Watch for increased aggression or changes in your pet's normal behavior. * **Physical Changes**: Female dogs may develop male-like physical traits or vaginal discharge. Male dogs may develop prostate issues. * **When to Call the Vet**: Stop the medication and contact your veterinarian immediately if your pet stops eating, starts vomiting, loses weight rapidly, or if you notice a yellowing of the eyes, gums, or skin (jaundice). * **Human Safety**: Pregnant women should avoid handling this medication, as it can cause severe birth defects.
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
用途
- Anti-estrogenic activity, anabolic effects, negative feedback on gonadotropin release
- Alopecia X (when melatonin fails)
- Testosterone-responsive dermatosis
- Suppress estrus in Greyhounds
- Estrus suppression
- Anti-estrogenic activity, anabolic effects, negative feedback on gonadotropin release
給藥方式
可能的副作用
- Hepatotoxicity (elevated liver enzymes, icterus, periportal hepatocyte enlargement)
- Virilization of females (clitoral hypertrophy, vaginitis)
- Vaginal discharge
- Prostatic hyperplasia in males
- Increased aggression or behavioral changes
- Seborrhea
- Premature epiphyseal closure in young animals
注意事項與禁忌
- Hepatic dysfunction or pre-existing liver disease
- Pregnancy (Category X - causes fetal masculinization)
- Prostate cancer or severe prostatic hypertrophy
- ### Important Precautions * **Hepatotoxicity**: Chronic use is strongly associated with liver damage. Baseline and serial liver enzyme monitoring is mandatory. * **Cardiac Disease**: Use with extreme caution in patients with heart failure due to the potential for sodium and water retention. * **Growing Animals**: Prolonged use in young, growing animals can cause premature epiphyseal closure, stunting growth. * **Laboratory Interference**: Can decrease thyroxine-binding globulin, leading to decreased total T4 levels (free T4 remains unaffected).
藥物相互作用
- Cyclosporine: Methyltestosterone may increase serum cyclosporine levels, potentially leading to toxicity.
- Insulin: Methyltestosterone may decrease serum glucose levels, reducing insulin requirements.
- Oral Antidiabetic Agents: May decrease serum glucose levels, increasing the risk of hypoglycemia.
- Warfarin: Methyltestosterone may increase anticoagulant effects, increasing bleeding risk.
常見問題
Methyltestosterone用於寵物有甚麼用途？
### Important Information for Pet Owners * **Purpose**: This medication is a hormone used to treat specific hair loss conditions (like Alopecia X) or to manage certain reproductive issues. * **Liver Risks**: The most serious side effect is liver damage. **Blood tests are required** before starting this medication and regularly during treatment to ensure your pet's liver is handling it well. * **Behavioral Changes**: Watch for increased aggression or changes in your pet's normal behavior. * **Physical Changes**: Female dogs may develop male-like physical traits or vaginal discharge. Male dogs may develop prostate issues. * **When to Call the Vet**: Stop the medication and contact your veterinarian immediately if your pet stops eating, starts vomiting, loses weight rapidly, or if you notice a yellowing of the eyes, gums, or skin (jaundice). * **Human Safety**: Pregnant women should avoid handling this medication, as it can cause severe birth defects.
Methyltestosterone對我的寵物安全嗎？
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
本文僅供一般健康教育，不能取代專業獸醫意見。如寵物身體不適，請諮詢獸醫。