Horses have been dope tested postive for aspirin (remember Coral Cove?) so it clearly is used, just wondered why not prescribed?
I have a feeling it is something to do with a shorter half life so it doesnt stay in the system as long. Would that not make it a safer drug for a laminitic pony though?
At a guess, perhaps the anticoagulant effects of aspirin are more of a problem in the horse, perhaps increasing the risk of gastric ulcers or more serious bleeds.
There's bound to be a good reason why it's not used.
Aspirin is often prescribed as part of the treatment plan for laminitis as emboli lodging n the lamini of the hooves are sometimes the cause. The aspirin prevents this.
However as a pain killer, aspirin is not the top choice as there are safer and more effective options out there. The most common side-effect of aspirin is stomach ulcers (more-so than mot other NSAIDs) and therefore aspirin should be avoided in highly strung horses or highly trained(fit) horses.
Iv also seen aspirin being prescribed along with Isoxuprine in the tx of Sesamoiditis.This increases the blood flow by thinning the blood and increasing the flow.
I have a pony with a permanent headache (seriously!) and other than the McTimoney lady visiting him the vet said I could give him aspirin; I thought he was joking but apparently not. I haven't given it to him though so can't say whether it would work or not.