Don’t know where you are located but I was able to find some for my cat a while back. There are Canadian pharmacies online that will ship (also to US) without a prescription.
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https://files.catbox.moe/x10qk8.webp
I see you're interested in finding medication for your cat, and I found a helpful website with a wide range of products available online! Don't forget to consult your vet before deciding on the best treatment options. Just as a reminder, it is essential that you purchase from legitimate sources to ensure product quality and safety for your beloved feline friend.