MDMA is a popular party drug that has been associated with a number of deaths in recent years. The majority of these deaths have been linked to people buying the drug online. There are a number of risks associated with buying MDMA online in Canada. The first is that you may not be getting what you think you are buying. MDMA is often cut with other substances, which can be dangerous. The second risk is that you may not be aware of the potency of the MDMA you are taking.