The blood has now been partially purified of the MDMA and its metabolites, dependent on the pH levels. The elimination half-life of MDMA is about 7.5 hours. In other words, 7.5 hours after you have taken ecstasy, half of the MDMA is still in your body.
Ecstasy still remains detectable in your body for about 3 days after you take it. The body needs a week to fully recover from an ecstasy trip. The brain need more time. That is why is advised to take a break of at least 6 – 8 weeks between doses.