what does pseudoephedrine do
Pseudoephedrine (/ËsjuËdoÊ.É¨ËfÉdrÉªn/ or /ËsjuËdoÊËÉfÉ¨driËn/ ; PSE) is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes.It may be used as a nasal/sinus decongestant, as a stimulant, or as a wakefulness-promoting agent.he dextrorotary (+)- or d-enantiomer is (1 S ,2 S)-pseudoephedrine, whereas the levorotating (â)- or l-form is (1 R ,2 R)-pseudoephedrine.