Mephedrone, also known as "Meow-Meow" or "Kitty Kat," is a man-made cathinone substance that initially surfaced in the mid 2010s. This crystal substance, often snorted, acts as a stimulant affecting the brain system. https://mephedrone-meaning473852.articlesblogger.com/64269469/mephedrone-a-comprehensive-overview