Do not give HEMANGEOL to your child if your child: was born prematurely and has not reached the corrected age of 5 weeks weighs less than 4 ½ pounds is allergic to propranolol or any of the other ingredients in HEMANGEOL has asthma or a history of breathing problems has a heart problem, slow heart rate (less than 80 heart beats per minute), very low blood pressure is at risk for low blood sugar, for example is vomiting or unable to take feedings has high blood pressure caused by a tumor on the adrenal gland, called “pheochromocytoma”