Hello I am Dr. Joey. Thanks for trusting me to help you and your pet today. I am a licensed veterinarian with over 16 years of experience. I look forward to working with you.
Intermittent vomiting can be consistent with a gall stone in a cat. Surgery is expensive and a tough call, but it is the gold standard for treatment. If you elect not to go that route, then if she was my patient I would recommend do some lab work, if not already done (Hopeful this was- including a complete blood count,chemistry profile, thyroid check and urine check). If her white blood cell count was elevated then I would start antibiotics in case there is bacterial infection in the gall bladder associated with the stone. Ideally, your vet can get a sample of the bile in the gall bladder for a culture and sensitivity to know definitively if there is an infection (done via ultrasound); this is ideally done before starting an antibiotic. Medically, the supplements you mention probably will not help. However, Ursodiol may help to solubilize some biliary stones and will liquefy bile to try help with passage of stones. So, I highly recommend start this medication. It will need to be professionally compounded and given once daily (usually we get this made into a liquid suspension).
As well, if she has any weight loss, then I would also consider running cobalamin and folate blood levels. Cobalamin (Vitamin B12) is easily supplemented as an injection and will help with weight gain. Also, consider beginning treatment with Cerenia for its anti-nausea and anti-inflammatory properties.
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