According to Winta, describing adding bump-doses onto the initial amount of methylone: "This is usually 50-100 mg's for my friends and myself. We do this 'trick' almost every time, the thing is that the booster hits right about the same level as the first trip but doesn't take quite as long.

Lets say we redose with 50 mg when the first effect starts to wear off, we get our trip boosted back to the same level for around another hour. I If we take 100 mg booster, it lasts about 2 hours instead. A whole full dose as a boost will take about the same time again as if I had started over."

Another report describes an idiosyncratic reaction: "As for bumping, after the first hour, oral bumps of 50 mg worked so-so and 100 mg definitely extending things by an hour, but after three 100 mg bumps, an hour apart each, the sedating effect took completely over, and resulted in a very pleasant state that was almost exactly like the feeling after smoking opium, enjoyed that for another 2-3 hours (lost track of time) until falling into a very deep and restful sleep."

A few methylone users have reported chest pains and heart palpitations during and after use, especially with repeated or high doses.