Disclaimer: The effects stated below cite the Subjective Effect Index (SEI), an open investigation literature according to anecdotal user experiences and the personal analyses of PsychonautWiki contributors. As a result, they need to be considered using a balanced degree of skepticism. 4F-MPH has a particularly brief heritage of recreational use. https://devinpyjtg.newbigblog.com/36215447/a-review-of-4f-php-effects