Essential tremor is a common movement disorder that affects between 5 and 10 million
persons in the United States. It is characterized primarily by an action and postural tremor
most often affecting the arms, but it can also affect other body parts. Essential tremor is a
progressive neurologic disorder and can cause substantial disability in some patients.
Although there is no cure for essential tremor, pharmacologic and surgical treatments can
provide some benefit. Primidone and propranolol are first-line treatments. Other medications …