Anxiety and severe depression go hand in hand. Anxiety makes severe depression a physically uncomfortable experience for the patient in addition to the psychological symptoms.
If you lessen the anxiety symptoms first, then it could mean the patient may be better able to cope with the illness?
Antipsychotics are helpful in controlling anxiety. They have the advantage over antidepressants as benefits to the patient usually begins in 2 weeks or under as opposed to antidepressants - usually 6 weeks.
So would it make sense to treat severely depressed patients in primary care with antipsychotics as a mono therapy as a first step?