Riven has three of these a day – 2 in a morning and one at night. We just put them in a bit of banana. Before we started to give them, her eyes were very red, she was lethargic, had lumps on her skin and most worrying, she started to have what looked like weird mini head tremors. Since having these pound shop wonders, Riven has not had these symptoms. Our vet said they are fine and we can give 1 tablet per 10 kgs. Fun.