https://raypeatforum.com/community/threads/why-is-this-serotonin-receptor-type-bad.25497/
"there is a difference between plasma and platelet serotonin, and it's my understanding the 5HT2B is plasma, which is the very bad serotonin" by user alywest
and then
"1,4-naphthoquinones stimulate serotonin uptake in platelets in a manner similar to other SSRE such as tianeptine and in opposition to SSRI drugs like Prozac (fluoxetine)." by user haidut
So it seems like a good effect