Substances
MDMA

Pure MDMA comes in the form of brownish or white crystals. Ecstasy, which is a general name for substances like MDMA, is usually sold on the street as tablets, coming in all sorts of colours and some of them have designs or logos stamped into them and may be adulterated with other similar chemicals.
Harm potential
moderately addictive with a high potential for abuse
Source: PsychonautWiki
Dosage
This dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.
oral
light: 40-70mg
common: 70-140mg
strong: 140-180mg
Source: PsychonautWiki
View dosage charts in the KnowDrugs app
Effects
- MDMA makes users feel energised, alert and alive, 'in tune' with their surroundings, and can make music and colours more intense. Users often report temporary feelings of love and affection for the people they're with and for the strangers around them. Lots of people feel really chatty on E., although these chats don't always make sense to people who aren't on an E.
- Short-term side effects can include: feelings of dizziness, increased heart rate, raised body temperature, sweating and nausea. Also possible: decreased appetite and sense of tiredness, dilated pupils, changes in seeing and hearing abilities, jaw cramping (gnashing teeth), strong thirst which should be taken care of to avoid overheating (hyperthermia). Dehydration can be fatal.
- Risks: cardiovascular collapse through overexertion and lack of oxygen, kidneys and liver failure: in acute cases, get emergency care immediately! After the effects have worn off you may get an 'ecstasy hangover' (depression, more easily frustrated, fear). Long-term consumption can increase/strengthen the side effects for users. Building tolerance: losing the high with higher doses (1-2 month break from usage is necessary). Weight loss due to malnourishment can come from a loss of appetite, liver and kidney damage from not drinking enough water.
- Choosing sex partners on MDMA can lead to regret and unprotected sex if condoms are not available. The alteration of the judgment under MDMA leads to questioning the consent of the partners involved. The effects of MDMA can cause erectile dysfunction and vaginal dryness.
Source: drugscouts
Interactions
View all interactions in the KnowDrugs app
Tolerance
full
with prolonged and repeated use
half
1 month
zero
2.5 months
Source: PsychonautWiki
Marquis
Black (may have purple tint)
Source: Tripsit.me
Proof time
blood
<24 hours
urine
1-4 days
Source: drugscouts