Uses of This Medicine. Amitriptyline is used to treat symptoms of depression. It works on the central nervous system (CNS) to increase levels of certain chemicals in the brain. This medicine is a tricyclic antidepressant (TCA).This medicine is available only with your doctor's prescription.mitriptyline is used to treat symptoms of depression. It works on the central nervous system (CNS) to increase levels of certain chemicals in the brain. This medicine is a tricyclic antidepressant (TCA).
In Geology. A convergent boundary with no subduction is a continental-continental boundary. Because oceanic crust is denser than continental crust, it is always the subducting plate in a â¦ oceanic-continental boundary.In an oceanic-oceanic boundary, one of the plates will subduct, depending on several factors.ecause oceanic crust is denser than continental crust, it is always the subducting plate in a â¦ oceanic-continental boundary. In an oceanic-oceanic boundary, one of the plates will subduct, depending on several factors.
When one plate is composed of oceanic lithosphere and the other is composed of continental lithosphere, the denser oceanic plate is subducted, often forming an orogenic belt and associated mountain range. This type of convergent boundary is similar to the Andes or the Cascade Range in North America. subduction zone is formed at a convergent plate boundary when one or both of the tectonic plates is composed of oceanic crust. The denser plate, made of oceanic crust, is subducted underneath the less dense plate, which can be either continental or oceanic crust.