醋丙氫化可的松
**醋丙氫化可的松 (Hydrocortisone aceponate)** 是一種強效的局部**皮質類固醇**,在獸醫學中主要用於治療發炎性和搔癢性皮膚病,以及急性或復發性外耳炎。 > **臨床提示:** 作為一種雙酯前驅藥物,它在皮膚局部提供高強度的抗發炎功效,同時顯著減少全身性吸收及與糖皮質激素相關的典型全身性副作用(如腎上腺抑制或肝酶升高)。
作用機制: Hydrocortisone aceponate is a highly lipophilic **pro-drug**. Upon application, it penetrates the stratum corneum and is biotransformed by local esterases in the epidermis → **hydrocortisone 17-propionate** (the active form). It binds to local glucocorticoid receptors to inhibit inflammatory pathways, reducing erythema, pruritus, and swelling, while its rapid local metabolism minimizes systemic distribution.
各物種劑量
- Pruritic inflammatory skin disease · 2 pumps of spray per 10 cm x 10 cm square of skin (delivers 1.52 μg/cm2) · topical · q24h · 7 days · Cortavance spray
- Otitis externa · 1 pump (1 ml) per ear · topical · q24h · 5 days · Easotic (combination product)
- General · Dose not established · topical · unknown · unknown · Safety and efficacy not fully established in cats.
劑量為合格獸醫專業人員的臨床參考。請務必對照最新藥品仿單及個別病患確認。
給藥途徑
禁忌症
- Ulcerated skin
- Perforated tympanic membrane (ear drum)
- Cutaneous ulcers
- Known hypersensitivity to corticosteroids
- Concurrent systemic viral or fungal infections
- Use on large surface areas for prolonged periods without veterinary supervision
不良反應
- Epidermal atrophy (with protracted use)
- Aural erythema (otic preparation)
- Transient hearing loss in geriatric dogs (rare, otic preparation)
- Transient local erythema
- Skin thinning or atrophy (rare, usually only with prolonged use)
- Delayed wound healing
- Systemic glucocorticoid effects (extremely rare due to rapid metabolism)
藥物相互作用
- Other topical corticosteroids · Increased risk of local skin atrophy and potential systemic absorption · moderate
監測
- Resolution of pruritus and inflammation
- Signs of epidermal atrophy (skin thinning) with prolonged use
- Liver enzyme activities (during long-term use)
- Cortisol response to ACTH stimulation (during long-term use)
- Resolution of pruritus and erythema
- Signs of local skin thinning or atrophy with prolonged use
過量
Massive over-application or protracted use can result in **epidermal atrophy** (thinning of the skin). While systemic effects (such as increases in liver enzyme activities or depression of cortisol response to ACTH stimulation) are minimized by the pro-drug formulation, they may theoretically occur with significant overdosage or ingestion.
VetSheet 藥物參考供持牌獸醫專業人員作臨床決策輔助之用,不能取代專業判斷或廠方最新藥品說明書。