Fibromyalgia News TodayFew Fibromyalgia Patients Adhere to Treatment Regimens, Study RevealsFibromyalgia News TodayThe most commonly used classes of drugs are tricyclic antidepressant (TCA) compounds, selective serotonin reuptake inhibitor (SSRI), serotonin/norepinephrine reuptake inhibitor (SNRI) antidepressants, and the anticonvulsant Lyrica (pregabalin).