Assertion: l ephedrine | /r/HasProperty | a cns stimulant
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text: L-Ephedrine, and particularly its stereoisomer norpseudoephedrine (which is also present in Catha edulis) has indirect sympathomimetic effects and due to its ability to cross the blood brain barrier, it is a CNS stimulant similar to amphetamines but less pronounced, as it releases noradrenaline and dopamine in the substantia nigra.