while the use of those substances is increasingly affecting youth in the region the limited data available prevent the accurate estimation of their market size sources and trafficking routes seizures of ecstasy type substances increased sharply in brazil in with tablets seized an increase from in in colombia seizures peaked in when tablets were seized increasing from tablets in but seizures decreased again to tablets in guyana reported as a new development seizures of small quantities of ecstasy in the past two years in colombia reported four separate seizures of bromo dimethoxyphenethylamine cb amounting to units in total