Many of side effects eventually disappear. Beta-blockers inhibit or block the actions of adrenalin on blood vessels and the heart. Possible side effects of propranolol therapy include dizziness, fatigue, depression, nausea, and impotence. These side effects are reversible upon stopping propranolol. Primidone and propranolol may be used in combination.
Benzodiazepines relieve anxiety, reduce restlessness, and relax muscles.
As the benzodiazepines are habit-forming, they must be used judiciously. In ET the procedure of choice is DBS of the thalamus.