Flucytosine
別名: Ancobon, Ancotil, Alcobon
**Understanding the Medication:** Flucytosine is a specialized antifungal medication used to treat severe, deep-seated fungal infections (like Cryptococcosis). It is almost always prescribed alongside another antifungal drug to prevent the fungus from becoming resistant. **What to Watch For:** * **Bleeding or Bruising:** This drug can suppress the bone marrow's ability to make blood cells. Contact your veterinarian immediately if you notice unusual bleeding, bruising, pale gums, or extreme lethargy. * **Stomach Upset:** Nausea, vomiting, or diarrhea can occur. Let your vet know if these signs persist. * **Skin Changes:** In dogs, rashes or sores may develop, particularly on the nose or scrotum. **Commitment to Therapy:** Treating deep fungal infections requires a significant commitment. Treatment often lasts for several months, and frequent blood tests are necessary to ensure the medication is not harming your pet's kidneys, liver, or bone marrow.
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
- Cryptococcosis
- Candidiasis
- Susceptible fungal infections (Psittacines)
- Susceptible fungal infections (Raptors)
- Susceptible fungal infections (Psittacines and Mynahs)
- Susceptible fungal infections (Ratites)
- Cryptococcosis
- Candidiasis
給藥方式
可能的副作用
- Gastrointestinal disturbances (nausea, vomiting, diarrhea)
- Dose-dependent bone marrow depression (anemia, leukopenia, thrombocytopenia)
- Cutaneous eruption and rash (primarily on scrotum and nasal planum in dogs)
- Oral ulceration
- Increased hepatic enzymes
- Severe drug reaction in dogs within 10-14 days of treatment
- Aberrant behavior and seizures (reported in cats)
- Toxic epidermal necrolysis (anecdotal in cats)
注意事項與禁忌
- Known hypersensitivity to flucytosine
- > **Extreme Caution:** Use with extreme care in patients with renal impairment, as the drug is renally excreted. Dosage intervals must be adjusted based on creatinine clearance to prevent toxic accumulation. * **Hematologic Risk:** Use with extreme caution in patients with preexisting bone marrow depression, hematologic diseases, or those receiving other bone marrow suppressant drugs. * **Hepatic Disease:** Use cautiously with enhanced monitoring in patients with liver disease. * **Pregnancy:** Teratogenic in rats (FDA Category C). Use only when benefits outweigh risks. Consider milk replacer for nursing offspring. * **Laboratory Interference:** May cause false elevations in serum creatinine levels when using the Ektachem® analyzer.
藥物相互作用
- Amphotericin B: Synergistic antifungal efficacy against Cryptococcus and Candida. However, amphotericin B-induced nephrotoxicity can decrease flucytosine excretion, leading to flucytosine accumulation and enhanced bone marrow toxicity. Dosage adjustments and strict monitoring are required.
常見問題
Flucytosine用於寵物有甚麼用途？
**Understanding the Medication:** Flucytosine is a specialized antifungal medication used to treat severe, deep-seated fungal infections (like Cryptococcosis). It is almost always prescribed alongside another antifungal drug to prevent the fungus from becoming resistant. **What to Watch For:** * **Bleeding or Bruising:** This drug can suppress the bone marrow's ability to make blood cells. Contact your veterinarian immediately if you notice unusual bleeding, bruising, pale gums, or extreme lethargy. * **Stomach Upset:** Nausea, vomiting, or diarrhea can occur. Let your vet know if these signs persist. * **Skin Changes:** In dogs, rashes or sores may develop, particularly on the nose or scrotum. **Commitment to Therapy:** Treating deep fungal infections requires a significant commitment. Treatment often lasts for several months, and frequent blood tests are necessary to ensure the medication is not harming your pet's kidneys, liver, or bone marrow.
Flucytosine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。