What is propranolol and why is it used?
In humans, the heart drug propranolol has been used for reducing situational anxiety without causing sedation. The drug works by blocking some of the physical effects that accompany fear. In theory, if the pet cannot exhibit the physical effects of fear, the behavioral signs are less likely to be exhibited. The heart rate is slowed, blood pressure is lowered and the tremors or diarrhea that might be associated with fear are reduced. Propranolol should not be used in pets with heart, respiratory or liver problems.