Pexion tablets are half-scored, meaning you can split a tablet into halves. If you split a 100mg tablet, you will have created 2x 50mg tablets. Follow your vet’s instructions, they may need you to split the tablets depending on your dog’s weight and required dose of medication. If you are unsure about how to split the tablets, your vet will be happy to do this for you.Half-tablets left after a dose should be used or discarded after 24 hours. For example, if your dog needs one and a half tablets twice a day, you should carefully and safely keep the remaining half-tablet for their next dose.