Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Brain & Nervous System Health Center

Font Size

Antipsychotic Drug May Help Stuttering


As a result, Maguire conducted a study involving 12 men and 4 women with the developmental form of stuttering, ranging in age from 20 to 74. To be eligible, participants had to have started stuttering before age 6, still stuttering on at least 3% of their syllables. They also could not be undergoing speech therapy for their stuttering. Some of the participants were given Risperdal; others took a placebo.

Those study participants who took Risperdal were started on half a milligram nightly, with the dosage then increased to a maximum of 2 milligrams. "We used doses one-twelfth to one-third the typical dose used for schizophrenia," says Maguire.

At the end of the six-week trial, the Risperdal group had improved on all measures of stuttering severity, while the other group showed no improvement. The participants reported few side effects.

Daniel Kroll, MD, director of the Speech Foundation of Ontario Stuttering Centre, says he is encouraged by the study's results. "While [Risperdal] has been shown to be effective in decreasing the severity of stuttering, its long-term effectiveness and safety requires further study," says Kroll, who is also an assistant professor of medicine at the University of Toronto.

Maguire says it's not clear why Risperdal works and agrees that a much larger study is needed. But even then, he won't be ready to announce that it's a wonder drug for stuttering.

"We're not talking a cure by any means, and I'm not foolish enough to say it will take the place of traditional speech therapy," says Maguire. "I think it might prove to make the usefulness of speech therapy better."

Funding for the study came from Janssen Pharmaceutica Products, the makers of Risperdal.

1 | 2

Today on WebMD

nerve damage
Learn how this disease affects the nervous system.
senior woman with lost expression
Know the early warning signs.
woman in art gallery
Tips to stay smart, sharp, and focused.
medical marijuana plant
What is it used for?
senior man
boy hits soccer ball with head
red and white swirl
marijuana plant
brain illustration stroke
nerve damage
Alzheimers Overview
Graphic of number filled head and dna double helix