Pills sold as ecstasy have surfaced in the Netherlands which, instead of the expected active ingredient MDMAthe substance of particular health concern PMMA included. Info about PMMA you will find here. The pills are pink and have a mirror-inverted question mark as a logo (see picture). (source)

We advise against the consumption of untested substances - and this pill in particular!

If, despite the increased health risks consume untested substances, test carefully and wait at least two hours before you "top up"!