Oh No!! I'm sooo sorry to hear about poor Rocky! I will say prayers that his kidneys do recover and all is well...please post updates! Please don't beat yourself up.... & don't be too hard on your self. We all do things that we regret.....
I left a bottle of Rimadyl on the counter and Miko (Rainbow Bridge '04) counter surf'd and got it & ate the cap off & half of the tablets in the bottle (it was the chewable kind)....luckily I discovered what had happened very soon afterward, called the vet for advice & was told to give him Peroxide - teaspoon by teaspoon until he threw up the stuff and had nothing left in his poor tummy to vomit...then watch closely....I had to dose Chessie, Dona (Rainbow Bridge '05) & Miko with the stuff 'cause I wasn't sure if they, too, had gotten into it after Miko broke the bottle open....it was NOT fun cleaning up after them!!! It was NOT fun being scared to death that I was going to loose all 3 animals because of being careless!! Miko was the only one with the med in his vomit.....poor Dona threw up so much that she had to get IV fluids. Chessie threw up so much that he tore the mucosal lining of his esophagus and had bloody emesis for several days & had to take sucralfate antacid. Miko's labs were watched VERY carefully (Rimadyl can be toxic in Labs - my sister's lab died after taking it - but it is not always toxic - your vet needs to monitor the animal & their labs closely to make sure it's not harming them).....
....we all do things we regret....I'll be praying for you & Rocky!!
-Laurie