Amitriptyline is a tricyclic antidepressant used to treat depression. In multiple sclerosis it is frequently used to treat painful paresthesias in the arms and legs (e.g., burning sensations, pins and needles, stabbing pains) caused by damage to the pain regulating pathways of the brain and spinal cord.
Definition of modern for English Language Learners. : 1  of or relating to the present time or the recent past : happening, existing, or developing at a time near the present time. : 2  of or relating to the current or most recent period of a language. : 3  based on or using the newest information, methods, or technology.
(third-person singular simple present modernizes, present participle modernizing, simple past and past participle modernized) 1  To bring something up to date, or make it modern in style or function. ( 2 intransitive) To become modern in appearance, or adopt modern ways.