My cat's just been diagnosed with hyperthyroidism and been put on daily Vidalta tablets. In a few weeks she'll have another blood test and assessed for surgery. If she's not stable enough, she'll be put on another course of tablets. She's on 10mg at £35 for 30 pills. I'm quite happy to keep payng this every month for her, but am wondering if they can be bougth cheaper elsewhere. I've seen the tablets on a number of websites, but could I be doing my cat harm by not using the vet's perscription? Anyone bought these from an online provider?