4-Methylmethcathinone (4-MMC) is known as mephedrone. It is a research chemical for which there is as yet no scientific knowledge about consumption and the associated risks and side effects.
What is clear is that it is a stimulant/empathogen. Mephedrone is available as a powder or in tablet form.
Orally consumed, the effect starts after about 30-60 minutes and lasts for about 3-5 hours. Nasally consumed, the effect starts after approx. 5-10 minutes and lasts for approx. 1-2 hours.
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