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Thank you for using Just Answer. My name is Rebecca; I am a veterinarian. Please give me a moment to type my answer.
I am sorry Hannah got your pill. Let me do some research to be sure, but she should be OK. How long ago did she get it?
How much does she weigh? She got 1.25 mg of vitamin D (there are 4000 IU per mg, so 5000 IU is 1.25 mg). We start to worry if a cat gets over .1 mg per kg. If she is an 11 pound cat, she got .25 mg per kg.
It might be best to get her to vomit, but that can be difficult in cats. Hydrogen peroxide is not safe to use in cats; it can burn the lining of the stomach.The problem with vitamin D is raising her blood calcium levels too high. You can monitor her, and take her to your veterinarian on Moday to check her calcium levels, or take her today to try to get her to vomit the capsule.
At 9 pounds, she got .3 mg per kg, and we worry at .1 mg per kg. Continuing to do research.
reading up with some veterinary toxicologists. At this dose, she should probably not wait, she should see a veterinarian today.
To be safe, she should be started on IV fluids, and monitor her kidney values and calcium and phosphorus levels. If you can get there and they can get her to vomit, that would be best.You are welcome; please let me know how she is doing.