My vet prescribed this to help with Simba's symptoms for his urinary tract issues. I'm wondering if Phenoxybenzamine is the type of medication that takes effect immediately (like a person taking an aspirin) or, is it the type of medication that needs to be in the cat's system for a while before it starts to work. My vet never really gave me a straight answer and I've read some contradictions on the internet.
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3/23/07 at 1:42pm