What happens if my cat accidentally gets a double dose of antibiotics?

I would not be overly concerned, although the recommended dose is 5-10mg/lb (and an 8lb cat would have consumed approx 15mg/lb) it does have a wide safety margin and overdose symptoms are very rare. I would expect some mild gastrointestinal upset and a probiotic would be helpful to reduce the impact on the natural gut balance

She will be fine. Dewormer has a really wide safety margin so double dosing does not cause any major issues for pets. At the most she may have a little upset stomach, but I don't even expect that to occur.

It's a good question, but rest assured the safety margin for using Zeniquin is high - this means that you are not likely to see any issues by giving Leopold an accidental extra dose tonight. I would suggest that you continue by using the Clavamox every 12hrs, and repeating the next dose of Zeniquin tomorrow evening. It is best if both meds are given around mealtime - they are less likely to cause nausea and vomiting if given with a meal. Please feel free to ask any additional questions.

Hello and welcome to Petco Pet Education Center, formerly Petcoach. Overdosing of antibiotics is usually not a huge deal. It can cause an upset stomach, vomiting, diarrhea. I would monitor for these signs. I do recommend calling your local emergency clinic (or posting another question) including which antibiotic (Amoxyclav?, Doxycycline?, etc.), as this might change the answer and inducing vomiting might be recommended. Otherwise, just monitor for signs of an upset stomach and skip the next dose. Best of luck with Sumi!

The clavaseptin will be fine as it does has a wide dose range. However, the prazosin is not an antibiotic it is a medication used in high blood pressure etc. I assume your cat has some sort if urinary issue or high blood pressure if it is on this medication? Thankfully the dose range for prazosin is 0.25mg to 1mg per cat every 8 to 12 hours so even though you gave a double dose 2 half tablets is still within range. I would go ahead and give your tablets this evening as long as the cat has seemed okay today. Try and stick to the schedule as best you can. If you are worried that your cat is sleepy/dizzy I would take him to the vet as soon as you can.

That's ok, this happens. Lina should be fine; at most, you may see some stomach upset but this won't cause any serious problems. Just be sure to give it to her once a day from now on. I hope this helps!

Hello. While this is not a huge overdose, it is a bit high for an 8-pound cat. Please double check with your veterinarian to see if he wants you to continue with this dose. Thanks for using Petco Pet Education Center, formerly Petcoach.