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.
The white matter consists of tracts that interconnect segments of the spinal cord or connect the spinal cord with the brain. The gray matter appears in a butterfly shape, with ventral and dorsal horns, an intermediate gray matter and, in the thoracic cord, a lateral horn (sympathetic neurons).