ppa
ppa — noun
1. a chemical compound, short for phenylpropanolamine, that was once a common ingre
a chemical compound, short for phenylpropanolamine, that was once a common ingredient in cough, cold, and diet medicines because it shrinks blood vessels in the nose and reduces appetite; later linked to a higher risk of stroke and removed from many markets.
Theo checked the label and saw that the cold tablets contained PPA.
used as uncountable noun in checking-ingredients context
After the study linked PPA to strokes in young women, the health agency pulled it from store shelves.
historical context: safety withdrawal
Daichi asked the pharmacist whether any of his allergy pills still contained PPA.
Diet supplements that relied on PPA for appetite control were recalled nationwide in 2000.
- phenylpropanolamine
the full chemical name; PPA is far more common in everyday use
文法句型
PPA (abbreviation used as uncountable noun)
用法筆記
PPA is the common abbreviation for phenylpropanolamine. In medical writing and drug labels it appears without the full form spelled out. Most over-the-counter products in Taiwan and the US no longer contain PPA; it has been replaced by other decongestants such as phenylephrine or pseudoephedrine.