<Li> Key: AQHHHDLHHXJYJD - UHFFFAOYSA - N </Li> <Tr> <Th_colspan="2"> (verify) </Th> </Tr> <P> Propranolol is a medication of the beta blocker type . It is used to treat high blood pressure, a number of types of irregular heart rate, thyrotoxicosis, capillary hemangiomas, performance anxiety, and essential tremors . It is used to prevent migraine headaches, and to prevent further heart problems in those with angina or previous heart attacks . It can be taken by mouth or by injection into a vein . The formulation that is taken by mouth comes in short acting and long acting versions . Propranolol appears in the blood after 30 minutes and has a maximum effect between 60 and 90 minutes when taken by mouth . </P> <P> Common side effects include nausea, abdominal pain, and constipation . It should not be used in those with an already slow heart rate and most of those with heart failure . Quickly stopping the medication in those with coronary artery disease may worsen symptoms . It may worsen the symptoms of asthma . Greater care is recommended in those with liver or kidney problems . Propranolol may cause harmful effects in the baby if taken during pregnancy . Its use during breastfeeding is probably safe, but the baby should be monitored for side effects . It is a non-selective beta blocker which works by blocking β - adrenergic receptors . </P>

Propranolol is used in the treatment of which disorders
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