I'm so sorry for the loss of your pet. You'd have to ask the vet if the medicine can be returned. If they can't give a refund, you might consider donating it to someplace like the no-kill shelter in Seal Beach or other animal rescue organization.
I'm sorry to hear that, may Abby's memory be a blessing to you. You'll have to call the hospital and ask. They're unlikely to see a question posted on Google maps.
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