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 matter. The cortex of the brain which contains nerve cell bodies. The is in contrast to the white matter, the part of the brain that contains myelinated nerve fibres. The is so named because it in fact appears gray. The white matter is white because that is the colour of myelin, the insulation covering the nerve fibres.