Pseudoephedrine, based on the chemical structure of ephedrine from the geophyte genus ephedra, is used as a treatment for congestion
An stuffy or blocked nose is relieved with pseudoephedrine, a decongestant (nasal congestion). Nasal congestion is brought on by enlarged blood vessels in the cavities of your nose (sinuses). You may experience this if you have a cold. the flu
When nasal and surrounding tissues and blood vessels swell from an excess of fluid, it causes nasal congestion, which is characterized by a "stuffy" blocked feeling. Nasal discharge or a "runny nose" may or may not be present together with nasal congestion.
Sneezing, coughing, headaches, and body aches are common signs of head congestion. Other symptoms include a stuffy or runny nose.
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