My horse Venus has a splint and has almost completely recovered from it. However, my vet wants me to gradually begin doing flatwork to increase blood flow to her leg to help heal the splint. I want to give her Bute to help ease some of the pain. My question is, after administering the bute, when does the strength of the bute reach its peak? For instance, if I were to ride on Thursday morning, when should I give Venus Bute so that she receives the best results when I ride?