Effect of propranolol on essential tremor

Area of Science:

• Neurology
• Pharmacology

Background:

• Essential tremor is a common neurological disorder.
• Current treatments for essential tremor have limitations.

Purpose of the Study:

• To evaluate the efficacy of propranolol in treating essential tremor.
• To assess the impact of propranolol on tremor amplitude and frequency.

Main Methods:

• A double-blind, cross-over study involving 21 patients with essential tremor.
• Daily administration of 120 mg propranolol.
• Electrical recording to measure tremor amplitude and frequency.

Main Results:

• Propranolol did not alter tremor frequency.
• A reduction in tremor amplitude was observed in 15 out of 21 patients.
• The medication was more effective in older patients and those with slower tremor frequencies.

Conclusions:

• Propranolol can be an effective treatment for reducing essential tremor amplitude.
• Patient age and baseline tremor frequency are factors influencing propranolol's effectiveness.