Buprenorphine, the active ingredient in both Suboxone and Subutex is less likely to cause addiction, and has a calmer withdrawal period. More clinical studies have been done on the effects of methadone during pregnancy than the effects of buprenorphine during pregnancy.
You won't believe these 10 facts about people. Gray matter or grey matter is a type of neural tissue which is found in the brain and spinal cord. It is named after its distinctive brownish-gray color, in contrast with white matter, another type of neural tissue which appears white because it is coated in myelin sheathes.
gray areas of brain and spinal cord made up primarily of cell bodies and dendrites of nerve cells rather than myelinated axons. White matter or substance is the tissue composed primarily of myelinated, or medullated, fibers. The bodies of the nerve cells are centered in the gray matter. In the brain the gray matter may be external to white matter, e.g. cerebellum, or central to it, e.g. cerebrum.