12 weeks into 300mg = no libido!

Male, Bipolar on Lamotrigine here. I’m stable but tend to be on the “depressive” end, especially with very low libido. So my psychiatrist offered me to start Bupropion. Safe for Bipolar 2 and could help my sex drive I was told…

Started 6 weeks on 150mg SR in the morning: felt horny the first days, then libido completely disappeared. Very hard to focus on fantasies, no interest for my partner and noticed my penis is more flaccid, like smaller (like being on a stimulant that is vasoconstrictor).

She said I could up to 2 x 150mg SR and it’s been 6 weeks on this (12 total) and: ZERO.

Honestly my level of desire is way lower than before.

Should I go back and ask to stop/try something new?

Big note: Yes it is helping with my depression, not experiencing anxiety and good sleep, but eating less: maybe very low calories = low libido?