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Did convenia cause death?

Species: Cat
Breed: Domestic shorthair
Age: More than 15 ye
Dear Dr. Marie,
My beloved pet has died just seven days after receiving a shot of Convenia. My query is should this newer medication be given to a 17 year old cat who is already in distress. She received the shot one week ago Monday, along with a script for mirtazapine to stimulate her appetite and began to become lame from that same evening. I, foolishly, thought her hind leg was sore from a blood draw the vet had done even though I told her I wouldn't be able to submit it due to the fact both my husband & I have been laid-off during the last few years and have no health coverage for ourselves and couldn't pay for it right now. I was told she was dehydrated and she received a subq treatment. She hadn't eaten in 3 days but was still drinking on her own. I keep finding articles where it is claimed that this drug causes anemia. This would explain the total loss of mobility which occured by this Sunday. It worsened each day and progressed to the front limbs. The vet claimed she had no incidence with this drug but I couldn't afford to bring her back in and she died in my arms early this past Monday morning. She tried to drink on her own all week but by Sunday I was using the syringe to give her fluids, which she did drink. I wish now that she had been given an oral antibiotic that I could have given to her each day. I was never asked. How could she have made such a drastic change within 6 hours upon returning home from the vet's visit. She looked zoned out at times. Until she vomited on the Friday morning she was her usual self; leaping across me from the sofa arm to an arm's length away like a furry little gazelle. What happened is all I think about now.


Online vet, Dr. Marie

Dr. Marie replied:

I'm so sorry for your loss.

Convenia is a very safe drug and it is extremely unlikely that it contributed to Espresso's death. It sounds like she was quite unwell when she went to see the vet.

Yes, Convenia is a new medication but its safety profile is good.

I'm very sorry that Espresso passed away.

Dr. Marie.

---This question was asked in our Ask A Vet For Free section.---


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.