Table 7.

Open issues about prescribing Kampo medicine (n = 285)

Issue	frequency	%
The dose and dosage forms need to be better devised for simpler application	173	60.7
No evidence of efficacy from placebo-controlled studies	109	38.2
Action mechanism of Kampo medicine is not yet elucidated	97	34.0
No opportunity to learn about Kampo medicines	90	31.6
Relatively weak effect	79	27.7
Drug interaction is uncertain	66	23.2
Production of effect is slow	56	19.6
Others	25	8.8
There are no issues	12	4.2

Multiple answers allowed.