Metoprolol belongs to the group of medicines known as beta-blockers. It is a medicine which is used to treat several different medical conditions. It works on the heart and blood vessels. Metoprolol slows down the activity of your heart by stopping messages sent by some nerves to your heart.
A normal cat takes between 20 to 30 breaths per minute, with a relaxed cat measuring on the lower end of the scale. Call your veterinarian if the rate is too rapid, or if your cat is panting â the latterâs not really normal in cats, at least not the way we see it in dogs.
Stress can certainly cause a faster than normal heart rate, but we take that into account when we listen to your cat's heart. If your cat's heart rate exceeds 220 beats per minute consistently, and does not slow down as your cat relaxes, then that can potentially indicate heart disease.