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pseudoephedrine
pseudoephedrine Pseudoephedrine is a phenethylamine related to ephedrine that acts on the sympathetic nervous system.
Pseudoephedrine is a phenethylamine related to ephedrine that acts on the sympathetic nervous system. It increases norepinephrine release and has weak direct effects at alpha- and beta-adrenergic receptors, leading to blood vessel narrowing and reduced nasal and sinus congestion.