Ecstasy Historically, Ecstasy in the UK came in tablets about 9mm wide and 3.5 mm thick. These tablets were commonly white or off-white, but could come in almost any colour. They were often imprinted on one or both sides with a variety of 'brand logos' and scored on one side if not imprinted on both. Click above for the BIGGER PICTURE There is currently an an increase in the availability of powder / crystalline MDMA powder being sold as a much purer version that the tablets, but whether this true or a cunning marketing exercise may be hard to say.