White willow is a tree found mainly in central and southern Europe. Its bark is used to make aspirin, and white willow bark is often used as a substitute for aspirin for dogs.
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Purpose
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White willow bark is used as a pain reliever, anti-inflammatory, fever reducer and blood thinner, much like aspirin. It is often used to help dogs with arthritis.
Sources
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Many veterinarians sell willow bark that is designated for dogs or can recommend their preferred supplements. A prescription is not required.
Dosage
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The dosage depends on the size of the dog. Follow the instructions on the package or from your vet.
Effectiveness
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White willow bark takes longer to be effective than aspirin, but the effects last longer.
Safety
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White willow bark is safer and has fewer side effects than aspirin. However, people and other animals that can't have aspirin, such as cats, should not be given white willow bark without doctor or vet supervision.
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