Dulogud 20mg contains duloxetine, a selective serotonin and norepinephrine reuptake inhibitor (SNRI), which works by increasing the levels of serotonin and norepinephrine in the brain. This dual mechanism of action helps alleviate symptoms of depression, such as persistent sadness and loss of interest, while also providing relief from chronic pain conditions like fibromyalgia and neuropathic pain.