I have been taking citalopram for 3 months for severe anxiety and depression. I have previously had horrific effects with sertraline and venlafaxine. I've tapered the citalopram up from 5 to 20 mg and was pleased to feel positive effects. However it's all went backwards. My anxiety is constantly high again and mood slipping downwards, angry etc. Gp couldn't offer much advice except increase to 30mg, but I'm wondering what's the point. More side effects etc and what if they just stop working again? Has anyone had a similar experience?