Fentanyl Transdermal Dosing for Dogs, Cats, Horses, Sheep, Goats
Important Safety Information
Fentanyl is a potent opioid analgesic. Use with extreme caution and monitor patients closely.
Transdermal absorption can be inconsistent in some species. Always monitor for adequate pain control and adverse effects.
Reference Source
Saunders Handbook of VETERINARY DRUGS, Page 347-349
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Standard Dosage Guidelines
Small Animal Dosage
| Species | Route | Dosage | Frequency | Notes |
|---|---|---|---|---|
| Dogs | Transdermal Patch | 50-mcg/hr patch | q72h | 10-20 kg dogs |
| Transdermal Solution | 2.7 mg/kg (1.2 mg/pound) | Single dose | Applied topically to dorsal scapular area 2-4 hours prior to surgery | |
| Cats | Transdermal Patch | 25-mcg patch | q120h | Per cat |
Large Animal Dosage
| Species | Route | Dosage | Frequency | Notes |
|---|---|---|---|---|
| Horses | Transdermal Patch | 200-300 mcg/hr | As directed | Adult horses: two or three 100-mcg/hr patches (35-110 mcg/kg) |
| Transdermal Patch | 100-mcg/hr patch | As directed | Foals: one transdermal patch | |
| Sheep & Goats | Transdermal Patch | 100-mcg/hr patch | As directed | Absorption has been inconsistent |