Tag: gefluoreerden

4F-MPH, also known as 4-Fluoromethylfenidaat, is a synthetic stimulant similar in structure and action to methylphenidate, the active ingredient in well-known drugs such as Ritalin and Concerta. In recent years, 4F-Ritalin has gained popularity as a research substance and is being investigated by some people as a concentration and alertness ...