What does step 4 of the prescribing cascade involve?

• A. Is there a licensed medication for human use for the same condition? This also includes importing medications.
• B. Is there a licensed medication in Northern Ireland?
• C. Is there a licensed medication for the same species but in a different condition?
• D. Is there a licensed medication for a different species?

Answer: (A)

The step tests what to do when there is no veterinary medicine licensed for the species and the condition, by considering using a medicine licensed for humans to treat that condition in the animal. This option can also involve importing a human medicine if no suitable veterinary product exists locally. The idea is to provide a treatment option and avoid leaving the animal untreated, but it must be justified, with careful assessment of the medicine’s safety and efficacy in the animal species, appropriate dosing and administration, potential differences in formulation or excipients, and any regulatory or withdrawal considerations. It also requires appropriate veterinary oversight and documentation, since the medicine is being used off-label for the animal. The other situations—license availability in a different jurisdiction, a medicine for the same species but a different condition, or a medicine licensed for a different species—are considered in other parts of the cascade, not this step.