Pristiq (generic: desvenlafaxine) is a prescription medication used to treat depression. Pristiq belongs to a group of drugs called serotonin norepinephrine reuptake inhibitors (SNRIs), which work by increasing serotonin and norepinephrine levels in the brain to maintain mental balance and improve mood.

This medication comes in tablet form and is taken once a day, with or without food. Swallow Pristiq tablets whole.

Common side effects of Pristiq include nausea, tiredness, and headache.