So I’ve had a fair few ups and downs with some trail and error on some different medications for MDD with GAD and a bit of PTSD thrown in for good measure! 
Decided today with my psych to go back down the SSRI route with Escitalopram 20mg this time, but augmented with 450mg Lithium SR. 
Has anyone had any success with Lithium augmentation? It’s used to be the first line treatment, but it’s cheap and readily available, so I guess pharma don’t like to pump it much. 
Anyway just wanted your opinions? 
Thanks!