If you are considering buying MDMA online in Canada, there are a few things you should keep in mind. First, MDMA is a controlled substance in Canada and it is illegal to buy or sell it without a prescription. Second, MDMA is often sold as a powder, pill, or tablet, and it is difficult to know for sure what is in each dose. MDMA can be cut with other drugs or substances, and it is difficult to know what you are taking when you buy it online. Finally, MDMA is a powerful drug, and taking too much can be dangerous. If you do decide to buy MDMA online, be sure to buy from a reputable source and start with a small dose to reduce the risk of adverse effects.