I just called back again and Alani wasn't even given any buprinex. I was supposed to pick it up at their pharmacy. I talked to my vet's assistant and he said to just monitor Alani and to call him back tomorrow morning to let him know how Alani is doing. He said it sounds like he's just irritated from straining so the blood should be a one time thing. I just need to make sure he continues to eat, drink, and pee. Luckily I'm off Mon. & Tues. so I can monitor him closely and if needed I can bring him back in any time too.