Fact Sheets

Propranolol (Inderal)

Propranolol (Inderal) and other beta-blockers (eg. Lopressor, Tenormin, Congard, etc.) make the hyperthyroid patient feel better by blocking the action of thyroid hormone - the heart rate slows, and nervousness and shaking are reduced - and are used until the thyroid hormone T4 level returns to normal.


To avoid the above complications from abruptly stopping Propranolol, your doctor will reduce your dosage gradually over several weeks when you no longer need to take it.