Effects of Japanese herbal medicine, Juzen-taiho-to, in otitis-prone children--a preliminary study

Acta Otolaryngol. 2009 Jan;129(1):14-8. doi: 10.1080/00016480801998838.


Conclusion: Juzen-taiho-to (JTT, TJ-48), a Japanese herbal medicine that improves immune function, was found to be effective in otitis-prone in children.

Objective: To evaluate the efficacy of JTT against intractable and recurrent infections in immature immune systems, we administered JTT to otitis-prone infants and investigated clinical changes before and during JTT administration.

Subjects and methods: Twenty-four otitis-prone infants were administered JTT at 0.10-0.14 g/kg/day twice a day for 3 months. We compared clinical course, such as frequency of acute otitis media (AOM), duration of fever and antibiotics administration, and hospital visits for the periods before and during JTT administration.

Results: Medication compliance rate was 87.5%, and administration of JTT led to remission in 95.2% patients. No apparent side effects were observed. The frequency of AOM decreased significantly (Wilcoxon signed rank test, p=0.000) with JTT. The duration of fever (p=0.000) and administration of antibiotics (p=0.001), as well as the number of hospital visits (p=0.001) and emergent hospital visits (p=0.000) showed significant decreases after JTT administration. After the end of the JTT period, 14 of 21 (66.7%) patients started to take it again, as they experienced purulent otitis media and/or other infections after discontinuation. The frequency of AOM increased significantly after stopping JTT (p=0.004) and decreased again with JTT resumption (p=0.005).

MeSH terms

  • Acute Disease
  • Child, Preschool
  • Dose-Response Relationship, Drug
  • Drug Administration Schedule
  • Drugs, Chinese Herbal / administration & dosage*
  • Drugs, Chinese Herbal / adverse effects
  • Emergency Service, Hospital / statistics & numerical data
  • Female
  • Hospitalization / statistics & numerical data
  • Humans
  • Infant
  • Japan
  • Male
  • Otitis Media, Suppurative / prevention & control*
  • Phytotherapy*
  • Referral and Consultation / statistics & numerical data
  • Secondary Prevention
  • Utilization Review / statistics & numerical data


  • Drugs, Chinese Herbal
  • juzentaihoto