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Originally Posted by Lily del Chiesa  I use frontline plus on my big guys- When I'm fostering a smaller rescue dog, I usually measure out the amount needed for the dog's weight into a syringe and seal the remainder in a dark amber glass bottle that I label. I learned to do this when I was teching at the emergency clinic several years ago. Pretty common practice and VERY cost effective. I personally wouldn't purchase anything like that from someone who doesn't have 100% feedback though- unless the person who left them neg. feedback makes it a common practice of doing so. |
From the ads I just looked at on ebay, that's exactly what they seem to be doing. Instead of it being a true multi-dose vial, it's a single vial of a dosage meant for larger dogs with a needle and an amber bottle. So basically, someone is selling off a dosage meant for their bigger dog to you.
In a vet's office, it would probably be ok because you would be going through the vial quickly enough to prevent much degradation. But would the same quality be present in month 5 as there was in month 1 if you were doing it at home? I don't know. A lot of medications break down quickly when exposed to air- even in an amber bottle, it still wouldn't be air tight.
The best person to ask about it would be your vet. Ask them to calculate the correct dose for you. If you get the ok from them, I would buy the larger doses yourself from a known reputable source rather than risking getting someone's counterfeit or expired meds.