Have been struggling with extreme anxiety for last month or so. Doc prescribed 100mg Sertraline am, 7.5mg Mirtazapine and 2mg Valium before bed. Have been taking this for 1.5 weeks. Was great for first week but after that the anxiety returned. Now he wants me to drop from 100mg Sertraline to 50mg in am and take 15mg Mirt at night and 2mg Valium in the morning. He said I should only have Sertraline withdrawals for 2 days. I am way too scared to do this, as I've read Sertraline should be tapered slowly. The other thing he suggested was swapping Mirt for Quetiapine. So would be 100mg Sertraline in am and Quetiapine in pm. Anyone had any experience with Quetiapine? Thanks in advance.