When essential tremor (ET) significantly interferes with daily activities, long-term drug treatment is needed. Drugs most commonly used to treat essential tremor include beta-blockers (propranolol) and an epilepsy drug called Mysoline (primidone). Topamax (topiramate), another drug used to treat epilepsy and migraine, helps some people.
With the use of medication, people with essential tremor may see improvement in their ability to control their tremor and improvement in activities such as drinking from a cup or using food utensils. More specialized motor functions, such as being able to thread a needle, may still be too difficult. However, for most people, essential tremor is not disabling.
A seizure occurs when there’s abnormal electrical activity in the brain. Seizures may go virtually unnoticed. Or, in severe cases, they may produce a change or loss of consciousness and involuntary muscle spasms called convulsions. Seizures usually come on suddenly and vary in duration and severity. A seizure may be a one-time event, or you may have seizures repeatedly. Recurrent seizures are called epilepsy, or a seizure disorder. Less than one in 10 people who has a seizure develops epilepsy.
Your health care provider will determine which treatment is best for you based on your medical history. The goal of treatment is to help provide maximum improvement in function while minimizing the side effects of the medication you are taking.
For people with mild essential tremor, drug therapy is usually not necessary. Tremors may be lessened by minimizing exposure to emotional stress and avoiding substances, such as caffeine and nicotine, which may increase tremor. In social situations, a person with mild tremor can take a beta-blocker or drink a small amount of alcohol, if such treatments are approved by a doctor. Although alcohol may lessen the tremor, there is the danger of slowly increasing your intake.
Beta-Blockers for Essential Tremor
The beta-blocker Inderal (propranolol) has been used to treat essential tremor for more than 40 years. Other beta-blockers such as Lopressor also may be effective.
It is not clear how Inderal reduces tremors, but the drug may work by blocking nerve impulses to the muscles. Approximately 50% to 60% of people taking Inderal experience some improvement in function, but total tremor suppression usually is not achieved. The greatest improvement is in hand and voice tremors. The drugs may be taken once a day (for longer-acting formulation) or twice a day, depending upon the formulation used.
Side Effects of Beta-Blockers
Beta-blockers are not right for everyone with essential tremor. Side effects of beta-blockers may include: