Antidepressants cause emotional dullness.

SSRI antidepressants cause emotional blunting. This is a state in which emotions and reactions are poorly expressed, feelings lose their brightness, understanding of the intricacies of communication with people disappears, and the expressiveness of facial expressions decreases. These conclusions were reached by scientists from Cambridge during a study involving 66 people who took a placebo or the drug escitalopram for three weeks, and then underwent cognitive tests. Scientists used to think it was one of the symptoms of depression, but now they've figured it's a side effect of the drugs.