abstract |
The present invention relates to a medicament for preventing and/or treating stress diseases, said medicament being characterized in that (1S)-2-acetyl-1-(4-chloro-2-methoxyphenyl)-5-fluoro-1,2,3,9-tetrahydrospiro[β-carboline-4,1′-cyclopropane] is administered at such a specific dose that a brain TSPO occupancy requiring for expressing the pharmacological effects of the medicament can be obtained. |