My cat threw up her medicine. Should I give her another dose?

My female cat has a bladder infection with a possible partial blockage and possible kidney stones. The vet prescribed her liquid amoxicillin/clauvulanic acid (Clavamox) 1 ml twice daily until it is all used up. She threw up her first dose within 15-20 minutes of me giving it to her. The vet assumes the infection is very bad based on the preliminary findings in the cat's urine/bloodworm that the vet could process in her office, but other samples were sent out to a lab and the vet won't know the full results/exactly how bad the infection is until the UA results get back from the lab; they are grown as a culture so the vet said this could take 7-10 days after the lab receives the sample in the mail which could take another 2-3 days for shipping. The vet said her unrine/blood work showed her white blood cells were very actively fighting infection, that her urine smelled much more of ammonia than it should, and that she may have a partial blockage; therefore the vet said it was very important that I start the medicine right away. The cat has already threw up her first dose and I won't be able to get ahold of my vet u tip at least after the cat's third dose of medicine. The cat has an abnormally sensitive stomach and an abnormally strong gag reflex so I expect she will throw up the next two doses as well but I pray she doesn't since it's so important for her to get the medicine started immediately. She was treated for an assumed UTI with a shot of antibiotics that lasted for 10 days less than a month ago, but the infection never cleared up and has gotten worse over the past week. My poor Mynx is going to the litter box many, many times and she only manages to pee maybe a third of the time she attempts to and she is frequently unable to make it to the litter box before she urinates (when she can) and dribbles all the way there then attempts to go again in the litter box like she isn't even aware she already went. She sometimes meows very loudly when she's straining to go. I feel so badly for her. It has gotten much worse very quickly. She's not very old either so her kidneys shouldn't be failing or anything related to old age. Since she threw up the one dose so soon after I gave it to her should I give her another dose or wait until I contact the vet (I won't be able to contact the vet until the third or fourth dose she should have gotten). The medicine is a liquid so I know it will absorb faster than a tablet, but is 15-20 minutes long enough for it to absorb or did it all most likely come up when she vomited? If some got absorbed but not all, is this medicine too strong to give another dose immediately? Or would it be safe to give her another dose even if a little got absorbed? Should I give her another dose or wait until I can contact the vet?

Wait until you speak to the vet. It's highly unlikely that she totally emptied her stomach, and overdosing can do a lot of harm. Call your vet as soon as they open and explain what's going on. It sounds like your girl may need an anti-emetic to help her keep the meds down, so that's definitely something you can ask about. Also, remember that most antibiotics can cause nausea if given on an empty stomach, so make sure she has something gentle to eat first (unless, of course, you've specifically been told otherwise ). You could also ask about some pain meds for her too, as it sounds like she's in a lot of pain right now

I really hope she feels better soon :cross:

@Columbine   is correct. I would wait until you contact your Vet for instructions.

There have been a couple of times when Artie will vomit after giving him his medications. I have contacted the Vet. Their advice was not to double dose him, because you do not know how much was absorbed before the vomiting...

Please check with the Vet....

Good Luck.

I agree about talking to the vet before you give your cat more medicine.  Also it is a good idea to let the vet know about the vomiting anyway.  The vet may want to give you something to help with the nausea or may decide to try a different antibiotic completely.

I agree with what others have said. It's best to talk to the vet as soon as possible and ask for instructions from them. One thing I would ask about is an antibiotic injection. My vet has given it to our outdoor (former feral) cats when they get an infection. I believe the injection is effective for two weeks. It doesn't work for every kind of infection, but it's worth asking about.