How it works, how it is given and more

According to a Research Review 2022studies dating back to 1996 have found that BoNT injections into the forearm muscles can significantly relieve hand tremors associated with the following conditions:

In one Study 2023 involving 117 subjects with head tremors (not due to PD), participants received 2 injections of Botox or placebo (no active ingredient) 12 weeks apart. Six weeks after the second injection, more of the people who received Botox injections reported an improvement in symptoms.

The FDA has not approved Botox for the treatment of ET. However, doctors can prescribe the drug off-label for ET. THE American Academy of Neurology (AAN) Practice guidelines state that BoNT can be used for ET unresponsive to standard therapy.

ET is a common movement disorder that causes rhythmic, uncontrollable shaking of a part of your body. Tremors are caused by muscle contractions. ET most commonly involves the upper extremities (hands and arms), head, and voice. The condition usually gets worse over time, but may remain mild.

Researchers don’t know the exact cause of ET, but it may involve a part of your brain called the cerebellum. The National Institute of Neurological Disorders and Stroke reports that ET is inherited 50% to 70% of cases.

Tremor can also be due to other movement conditions, including some dystonias and PD. In fact, Botox is FDA-approved to treat cervical dystonia, which affects the neck.

The first-line treatment for ECB is oral medication. Specifically, the latest ET treatment guideline by the AAN recommends a treatment with the beta-blocker propranolol (Inderal LA) or the anticonvulsant drug primidone (Mysoline).

Second-line treatments for ET include other anticonvulsant medications as well as benzodiazepines and antipsychotics. Your doctor may also combine certain medications, such as propranolol and primidone.

However, many people taking primidone and other drugs for ET do not respond to them. These drugs may lead to only modest improvements in symptoms. And, like other drugs, ET drugs can cause side effects.

When medication doesn’t help, doctors may use surgery to help manage ET. Possible procedures include deep brain stimulation (DBS) and focused ultrasound. You can learn more about DBS and other surgeries for tremors due to PD.

If you have ET, talk to your doctor about all your treatment options. They can help you determine which treatments may best suit your needs.

Botox treats ET the same way it treats other conditions — by blocking nerve signals at the injection site. Since your muscles only contract when they receive nerve signals, Botox helps prevent your muscles from moving.

The effects of Botox are local and temporary. Only the muscles in the injection area are affected. Once the toxin is gone, the nerves start signaling again and your symptoms usually return.

Studies show that Botox can improve tremors inside 6 weeks and that the results may last for several months.

If you’re interested in Botox, ask your doctor what to expect with ET treatment.

Botox is injected into certain muscles. The specific locations depend on the severity and location of your tremor.

For example, you will receive Botox injections into your forearm muscles to help manage hand tremors. If you are getting Botox for head tremors, your doctor will inject the drug into the deep muscle on each side of your neck. Your doctor may use a combination of techniques to choose the exact injection site.

Since Botox is not approved for the treatment of ET, the drug’s prescribing information does not provide recommended doses. At clinical trial of Botox for head tremors, 2 Botox treatments were administered 12 weeks apart. Your doctor will determine the dose of Botox and injection frequency that is right for you.

Like other medications, Botox for tremors can cause side effects, including:

Other side effects that have occurred was mentioned with Botox vary, depending on the treatment area.

Before your doctor prescribes Botox off-label for ET, there is some important information to consider. The drug may not be a safe option for you if you have certain medical conditions or other factors that affect your health. Some of them are listed below.

Botox it has a boxed warning about the risk of spreading toxins. A boxed warning is the most serious warning from the FDA. It warns doctors and patients about the effects of drugs that can be dangerous.

Botox is a neurotoxin derived from Clostridium botulinum, the bacterium that causes botulism. It is possible for Botox to spread beyond the injection site. This can cause the same types of life-threatening symptoms that occur with botulism, including difficulty swallowing and difficulty breathing. The spread of toxins did not occur in clinical trials, but they have been rare exhibitions after the drug was approved. The toxin can spread hours to weeks after injection.

If you experience the above or other unusual symptoms at any time after receiving Botox treatment, call your doctor immediately. If your symptoms feel life-threatening, call 911 or your local emergency number.

Before getting Botox, talk to your doctor if any of the following factors apply to you:

Botox can be prescribed off-label for ET, including hand and head tremors. In clinical trials and other studies, Botox injections into targeted muscles have been shown to be effective for some people. Symptoms improved within 6 weeks of treatment and the improvements lasted for several months.

As with other uses of the drug, using Botox for ET can cause side effects, such as difficulty swallowing and muscle weakness.

Before receiving Botox, talk to your doctor about its potential benefits and risks for treating your condition.