Cannabis Improves Stuttering: Case Report and Interview with the Patient

Cannabis Cannabinoid Res. 2021 Oct;6(5):372-380. doi: 10.1089/can.2021.0060. Epub 2021 Jul 26.


Introduction: Speech dysfluency, often referred to as stuttering, is a frequent speech disorder encountered in about 5% of children. Although in the majority of people affected, symptoms improve in adulthood, in some patients, stuttering persists and significantly impairs everyday functioning and quality of life. Treatment for stuttering includes speech therapy, cognitive behavioral therapy, and relaxation techniques. However, a substantial number of patients do not benefit sufficiently from these treatment strategies or are even treatment resistant. Methods: We present the case of a 20-year-old male with treatment-resistant stuttering, who markedly improved after treatment with medicinal cannabis. Results: Besides improved speech fluency as assessed by several phoniatric tests, we observed remission of (social) anxiety, improved mood, and reduced stress, resulting in an overall improvement of quality of life after cannabis therapy. The patient, in addition, reported improved attention, concentration, and sleep, increased self-confidence, and better social life. No side effects occurred. Over a time period of more than a year, treatment was equally effective. In an interview, the patient describes his personal view and the influence of cannabis-based treatment on his life. Conclusions: Medicinal cannabis could be effective in treatment of refractory stuttering, but these preliminary data have to be confirmed in controlled studies.

Keywords: anxiety; cannabis; depression; phoniatrics; stuttering.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Cannabis*
  • Child
  • Humans
  • Male
  • Quality of Life
  • Speech
  • Speech Therapy
  • Stuttering* / drug therapy
  • Young Adult