ExoticRx · exoticrx.com/drugs/vidarabine
Vira-A
Phosphorylated to ara-ATP which inhibits viral DNA polymerase. Active against HSV and VZV. Largely replaced by acyclovir.
Poorly soluble — requires large IV volumes. Neurotoxic at high doses. Ophthalmic form better tolerated. Largely obsolete systemically.
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
Free-tier preview — dog and cat dosing. Pro and Student unlock all 2 species including reptiles, birds, pocket pets, livestock, and equine.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | Ophthalmic | 0 apply 1cm ribbon | q4-6h | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
| Cat (Domestic) | Ophthalmic | 0 apply 1cm ribbon | q4-6h | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.