Been suffering from intrusive thoughts and depression for 8 years. Initial 4 years without medicine and last 4 years on almost every ssri out there but no improvement. Changed my doc he prescribed aripiprazole 2 mg along with vortioxetine 5 mg. It worker great for recurring intrusive thoughts but didn't help in depression part and also had impulse control behaviour side effect. So recently my doc changed my meds to lamotrigine and vortioxetine. Been 15 days on lamo. initially 25 mg and now 50 mg. Lamotrigine seems to work slowly but surely but vortioxetine seems to make me excited and elated sometimes irritable. My queries are can I stop vortioxetine and continue with just one drug lamotrigine. And what would be my target dose of lamotrigine as these days I am taking 50 mg but it's not yet there where it's effect is optimal.