Mephedrone, also known as 4methylmethcathinone (4-MMC) or 4-methylephedrone, is a theamphetamine and cathinone classes. Slang names include drone, M-CAT,White Magic and meow meow. It is chemically similar to the cathinone compounds found in the plant It comes in the form of tablets or a powder, which users can swallow, snort or inject, producing similar effects to mdma amphetamines cocaine β-Keto-Methylbenzodioxolylpentanamine (Pentylone, βk-Methyl-K, βk-MBDP, methylenedioxypentedrone) is a compound developed in the 1960s, which has been reported as a novel and identified in some samples of powders sold as “NRG-1”, along with varying blends of other derivatives including. It was also found in combination with 4-MePPP being sold as “NRG-3”