Is Oleanide safe to take with Mirtazapine

I have been doing some research on other sleep aids. While searching for Phenibut info I came across Oleanide. Would this be safe to take if I"m already on Mirtazapine. I know that with drugs like Trazodone, you risk Seratonin Syndrome. I cant tell if this would also be a risk with Oleanide. Any insight would be appreciated.

Thanks in advance
B