It comes in small tablets that may have a picture on them such as a dove, a hammer and sickle, or a diamond. In the 90s MDMA was embraced by the underground rave scene, where users take ecstasy and dance all night. MDMA causes a feeling of empathy, openness and caring, as well as a decrease in defensiveness, fear, aggression and obsession. MDMA also decreases sexual behavior. It also causes amphetamine-like hyperactivity.
Body temperature rises, and users tend to become dehydrated.
They also may suffer from jaw clenching or teeth grinding. Normally, these sensations are caused when neurons communicate with each other and fire impulses through the brain via the neurotransmittors. Monoamine neurotransmittors release their neurotransmittors into the synaptic cleft and act on their receptors. What MDMA does can be explained by its ability to increase the levels of the monoamine neurotransmitters dopamine, norepinephrine and serotonin in the synapse. It dumps them into the synapse in quantities much larger than those seen with cocaine, but it releases much more serotonin and much less dopamine than do amphetamines.