What is another word for pseudoephedrine?
Pronunciation: [sˈuːdə͡ʊˌɛfɪdɹˌiːn] (IPA) 
Pseudoephedrine is a common ingredient in over-the-counter medication used to relieve nasal congestion. Synonyms for this drug include Sudafed, Afrinol, Pseudo, and Efidac-24. Pseudoephedrine works by narrowing the blood vessels in the nasal passages, reducing swelling and congestion. It is also used in the making of illegal drugs such as methamphetamine. Due to its potential for abuse, it is regulated by law and can only be bought in limited quantities at pharmacies. There are also alternative medications for nasal congestion that do not contain pseudoephedrine, such as phenylephrine, oxymetazoline, or saline nasal sprays.
