Doctor.

I visited the doctor due to depression and irritabilty issues.

He put me on an anti-depressant medication called Venlafaxine. Venlafaxine is in a class of medications called selective serotonin and norepinephrine reuptake inhibitors (SNRIs). It works by increasing the amounts of serotonin and norepinephrine, natural substances in the brain that help maintain mental balance.

More info later...