You have to be careful with 5-HTP and antidepressants thats for sure. I decided to take some at night when I was taking my Efexor in the morning, if you take them too close together it can result in Serotonin Syndrome etc.

It gave me EXTREMELY vivid dreams (the nightmares were enough on Efexor but this was another world altogether) I literally felt I was in another dimension and woke up very disorientated and felt messed up.

I continued it nightly for about a week but found I felt worse, cranky, snappy, agitated and generally messed up in the head. Its probably alot safer to have it when your not on any other anti depressant.

L-Tyrosine seems to be good though, I haven't had any problems with that. I don't have it daily though so not too sure on those effects