How is spasmodic dysphonia treated?

Anthony L. Komaroff, MD
Internal Medicine
Spasmodic dysphonia is a disorder of the muscles that control the vocal cords. The muscles spasm as the person tries to speak. This makes the voice quality irregular and sometimes difficult to understand.

The average onset of this disorder is between ages 30 and 50. Women are more prone to the problem than men.

Successful treatment for spasmodic dysphonia took a major step forward when Botox injections started. Botulinum toxin (Botox) weakens muscles. By injecting it into the laryngeal muscles, the spasm breaks. Voice quality usually returns to normal. The Botox injections are usually needed every 3 to 4 months.

Voice therapy sometimes helps. It is useful in mild cases, but has little effect in severe cases. Since the introduction of Botox, the role of voice therapy has greatly diminished.

Hopefully, research will find other therapies that may be longer lasting and as effective as Botox.
Harvard Medical School Living Better, Living Longer: The secrets of healthy aging

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Harvard Medical School Living Better, Living Longer: The secrets of healthy aging

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Some of the most common symptoms of voice disorders are a change in your voice (it becomes either deeper or raspy), you have trouble singing, your throat feels raw or itchy and you find yourself repeatedly clearing your throat. Th...

ese symptoms can be caused by inflammation, respiratory infection, growths on your vocal cords or just by overusing your voice if you are for example a professional singer or a member of a cheerleading squad. If you develop a voice disorder, you may want to see an otolaryngologist to determine the cause of your voice problem.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.