I can't advise as to why he is losing weight, and I can't add to the advise you have been given in relation to vet fees by instalment, but what I do with tablets is butter them with Flora marg. Open the cats mouth fire it in close and lightly but firmly hold the muzzle closed encourge him to swallow by rubbing his throat and job done.

Kitty was on medication for two months but she didn't do well on them, so eventually she had her thyroid removed and has bounced back and is doing really well.

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Owned by Ratty girls Hera, Athena, Boomer and Kitty the Cat
RIP Apollo and Starbuck, together again at the Rainbow Bridge. Till we meet again.