Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).
Pseudoephedrine is used to treat nasal and sinus congestion, or congestion of the tubes that drain fluid from your inner ears, called the eustachian (yoo-STAY-shun) tubes.
CAS number: 345-78-8
Synonyms: (1S,2S)-(+)-Pseudoephedrine hydrochloride
Benzenemethanol, alpha-[(1S)-1-(methylamino)ethyl]-, (alphaS)-, hydrochloride (1:1)
Molecular formula: C10H16ClNO
Molecular weight: 201.693