Question: what is desvenlafaxine gh xr?
Answer: How it works. Desvenlafaxine GH XR contains the active ingredient called desvenlafaxine benzoate. It belongs to a class of medications called Serotonin-Noradrenaline Reuptake Inhibitors (SNRIs). Serotonin and noradrenaline are chemical messengers that allow certain nerves in the brain to work.