Assertion: methamphetamine | /r/HasSubevent | higher concentrations
Facets:
value: in the synapse
type: LOCATION
value: much
type: DEGREE
Source sentences:
text: At low doses, methamphetamine also blocks the re-uptake of dopamine, but it also increases the release of dopamine, leading to much higher concentrations in the synapse (the gap between neurons), which can be toxic to nerve terminals.38,39