Hyperactivity, concentration difficulties and impulsiveness improve during seven weeks' treatment with valerian root and lemon balm extracts in primary school children

Phytomedicine. Jul-Aug 2014;21(8-9):1098-103. doi: 10.1016/j.phymed.2014.04.004. Epub 2014 May 15.


Background: Valerian root and lemon balm extracts have previously shown efficacy and excellent tolerability in children<12 years suffering from restlessness and insomnia. We now examined whether treatment with a fixed combination of both may also improve concentration, hyperactivity and impulsiveness.

Methods: 169 primary school children suffering from hyperactivity and concentration difficulties but not meeting ADHS criteria were treated in an observational study by 27 office based pediatricians with a recommended daily dose of 640 mg valerian root extract WS(®) 1014 and 320 mg lemon balm extract WS(®) 1303 (Sandrin(®)), and evaluated by pediatricians and parents using standardized questionnaires at baseline, weeks 2 and 7.

Results: The fraction of children having strong/very strong symptoms of poor ability to focus decreased from 75% to 14%, hyperactivity from 61% to 13%, and impulsiveness from 59% to 22%. Parent rated social behavior, sleep and symptom burden showed highly significant improvements. Only in two children mild transient adverse drug reactions were observed.

Conclusion: In primary school children with restlessness, concentration difficulties and impulsiveness treatment with WS(®) 1014 and WS(®) 1303 (Sandrin(®)) provides a viable option in addition to counseling and education.

Keywords: Concentration deficit; Hyperactivity; Melissa; Primary school children; Valerian-lemon balm-extract; Valeriana.

Publication types

  • Multicenter Study

MeSH terms

  • Child
  • Female
  • Humans
  • Hypnotics and Sedatives / chemistry
  • Hypnotics and Sedatives / isolation & purification
  • Hypnotics and Sedatives / therapeutic use*
  • Male
  • Melissa / chemistry*
  • Parents
  • Physicians, Primary Care
  • Phytotherapy*
  • Plant Extracts / chemistry
  • Plant Extracts / isolation & purification
  • Plant Extracts / therapeutic use*
  • Plant Roots / chemistry
  • Prospective Studies
  • Psychomotor Agitation / drug therapy
  • Sleep Initiation and Maintenance Disorders / drug therapy*
  • Surveys and Questionnaires
  • Treatment Outcome
  • Valerian / chemistry*


  • Hypnotics and Sedatives
  • Plant Extracts