# Effective use of yokukansan for Caucasian patient with panic disorder: A case report

## TL;DR

A 17-year-old Caucasian girl with panic disorder experienced significant improvement after using yokukansan, a traditional Japanese herbal medicine, with no adverse effects.

## Contribution

This case report demonstrates the potential effectiveness of yokukansan in treating panic disorder in non-Asian populations.

## Key findings

- Yokukansan significantly reduced panic attacks and anticipatory anxiety in a Caucasian patient.
- The treatment improved psychosocial functioning and quality of life without notable adverse events.
- This suggests yokukansan may be effective for panic disorder beyond Asian populations.

## Abstract

Yokukansan is a traditional Japanese herbal medicine that is widely administered to individuals of various age groups as an effective drug for anxiety, with few side‐effects. While animal studies have yielded promising results concerning yokukansan's potential in treating anxiety disorders, comprehensive validation has remained incomplete. Moreover, most of the clinical investigations regarding yokukansan have primarily focused on Japanese subjects, and its impact on non‐Asian ethnicities remains unverified.

We present the case of a 17‐year‐old Caucasian female with panic disorder (PD). Following her relocation to Japan, she experienced panic attacks due to environmental changes, which subsequently prompted her to visit to our clinic. Various medical examinations revealed no abnormalities, which ruled out the possibility of any physical illness other than PD. Significantly, the administration of yokukansan resulted in a notable reduction in panic attacks, as well as in anticipatory anxiety, accompanied by discernible enhancements in psychosocial functioning and overall quality of life. Furthermore, it is imperative to underscore the fact that no noteworthy adverse events took place.

Panic attacks and profound anxiety in a Caucasian patient with PD were successfully treated with the use of yokukansan. This case study suggests that yokukansan may be effective in treating PD in Caucasians as well as in Asians. However, to substantiate this preliminary observation, further investigations are required.

This report elucidates the effects of yokukansan, a traditional Japanese herbal medicine, on a typical panic attack in a 17‐year‐old Caucasian female. She experienced panic attacks approximately three times a week due to environmental changes, which subsequently prompted her to visit to our clinic, and the administration of yokukansan resulted in a notable reduction in panic attacks, as well as in anticipatory anxiety, accompanied by discernible enhancements in psychosocial functioning and overall quality of life. This case is noteworthy for the fact that the panic attacks and profound anxiety in a non‐Asian patient with panic disorder were successfully treated with the use of yokukansan, with no adverse events observed.