Hello, my 15 year old cat received a convenia injection on 6/21. He was showing signs of an URI (sneezing clear discharge, squinting eye) but no definitive bacterial infection was confirmed. The injection was 'preventative.' He has been diagnosed with stage 2 CKD, anemia of chronic disease, IBD, and asymmetric septal hypertropy & grade 3 heart murmur by a IM specialist and cardiologist. The vet who gave him the injection was his primary vet but is aware of these diagnoses. He is also currently taking 5 mg transdermal prednisolone every other day for IBD. I am horrified at what I am reading about the adverse effects of convenia. He has seemed okay since the injection, just more sleepy than usual. He is eating. My concern and question is: at what point can I stop worrying that he will have an adverse reaction? I am aware this stays in their system up to 65 days but at what point can I stop worrying? If he were to have an adverse reaction, would he have had it by now? I have been watching him like a hawk since Wednesday...Any insights you can share would be so appreciated! Thank you!
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Concerns about Convenia reactions
- Thread starter sen33
- Start Date
Welcome to The Cat Site! First of all, let me say that Convenia is widely used, including by those who maintain feral colonies as it is a "one stop shopping" antibiotic. No one can successfully pill a feral, much less 14 times. Its name is its selling point.
Having said that, there are those who have concerns about its use. I have only used it once, in a young indoor only cat who had a UTI and skin infection, and I did not like the reaction that he had. Did it work on the infections? Yes, in a matter of hours, but he shut down and became alarmingly lethargic. He spent an extra day at the vet's on subQ fluids and under observation but did pull through and has been fine since.
Since I am more or less a whistleblower, I reported this to Zoetis as an adverse reaction and they set up an incident report with a referral number. I spoke to them a couple of times and they told me that their research has shown that almost all adverse reactions occur within a 14 day period. Of course, what concerns pet owners is that it does not clear the system in 14 days, as you have mentioned. I have known the vet/practice owner who administered Convenia to my cat for years and he told me that he has never had an adverse reaction and never confirmed that Rikki might have or have not reacted to it.
There is no guarantee that your cat will have a negative reaction, so try to remain calm and just continue to observe him. If you don't want this to be used again, just for a precaution, a note can be put in your cat's file at the vet's office.
Please let us know how your cat does.
Having said that, there are those who have concerns about its use. I have only used it once, in a young indoor only cat who had a UTI and skin infection, and I did not like the reaction that he had. Did it work on the infections? Yes, in a matter of hours, but he shut down and became alarmingly lethargic. He spent an extra day at the vet's on subQ fluids and under observation but did pull through and has been fine since.
Since I am more or less a whistleblower, I reported this to Zoetis as an adverse reaction and they set up an incident report with a referral number. I spoke to them a couple of times and they told me that their research has shown that almost all adverse reactions occur within a 14 day period. Of course, what concerns pet owners is that it does not clear the system in 14 days, as you have mentioned. I have known the vet/practice owner who administered Convenia to my cat for years and he told me that he has never had an adverse reaction and never confirmed that Rikki might have or have not reacted to it.
There is no guarantee that your cat will have a negative reaction, so try to remain calm and just continue to observe him. If you don't want this to be used again, just for a precaution, a note can be put in your cat's file at the vet's office.
Please let us know how your cat does.
- Thread Starter Thread Starter
- #3
Thank you so much for the speedy response!
