Cat health question

[mylady]

OK, I put a call into the vet, but I wanted to ask here as well just so I can get an idea of perhaps what to prepare myself for and/or what questions to ask.
Spook was diagnosed with a Thyroid condition a couple months ago and was prescribed tapazole. Lately he's been throwing up a lot and one of the cats is having diahrea, I'm assuming it's him. He's already dropped weight due to his thyroid problem and I'm concerned that he's going to lose even more weight like this. So this morning he threw up and there was blood in it. He's throwing up brown stuff, not just bile, not hair balls. He's on the same food he's been on for at least 6 months. I don't know if maybe the tapazole could be making him throw up or have diarhea? He's not lethargic or behaving differently in any way. Still affectionate, wanting lots of attention etc.
I'd appreciate any feedback. I like to feel prepared before I go in to see the vet if I can.

[Helly]

The usual side effects of tapazole are lethargy, loss of appetite, and vomiting. There are other, more serious side effects, but diarrhea isn't one of them, and neither is vomiting blood. I suspect something else is going on, but don't have a clue what it might be.

[Kindredkiss]

It could be from the thyroid meds and they may need to be adjusted. Cats are hard sometimes to get regulated. You might want to ask the vet about a transdermal medication. That sometimes helps with the vomiting. If he vomiting alot that could be the cause of the blood. Definitly have him check and have full bloodwork done. Cats hide things really really well and you may not even know there is a problem until its too late

[prettymiss112000]

I agree with Kindred. Definitely go back to the vet, the meds may need adjusted or changed, and he may need something to settle his stomach as well. The blood could definitely be from the stress of vomiting a lot. But, go back to the vet and do full blood work again!

[Erks]

Also have your vet check your kitty's kidney function. Hyperthyroidism can mask an underlying kidney problem which could contribute to kitty's illness.