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Hello and thank you for your question. I am a Veterinary Nurse with over 15 years experience and I have assisted in the care of many pets with this particular medical concern. It would be my pleasure to assist you today. Is it possible for me to obtain some additional information from you about your companion?1) When did the vomiting begin?2) How old is your cat?3) When was his last normal meal that was held down?4) How much longer is his regimen of medication for the doxy? acyclovir?5) Is the doxy a slurry? pill? capsule? 6) How often are you giving it?
Thank you for the clarification.Doxycycline is likely the culprit here on causing him to not want to eat. This medication is known to cause GI upsets in cats and part of the reason it's compounded into a paste for you is its propensity for causing ulcers, especially in the esophagus when pills are given. The periactin is used to stimulate appetite, but it does nothing for nausea.The fact that Nitro hasn't eaten normally in the last 5 days also gives us concern for impending liver issues if he's not placed back on track quickly. I would talk to your vet about adding in a medication for nausea such as an anti-emetic. Part of the problem with continued dosing of these meds when he's not eating well is that it will only worsen what's going on in the GI tract, making him feel even less like eating.Your vet may also want to add in a GI protectant or switch antibiotics. In the meanwhile, I would try to mix some pure canned pumpkin with canned food that he likes to see if he will intake a few bites of this to help coat his GI tract and hopefully help calm it down. If not, you may need to resort to having your vet intervene medically to address his symptoms.
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