noun
traditional Chinese cold remedy
Archaic term for a medical powder with antipyretic and diaphoretic effects, used in traditional Chinese medicine. No longer in common use.
江戸時代の医書には、正気散という風邪薬の処方が記されている。
Medical texts from the Edo period record a cold remedy called 正気散.
From Chinese 正氣散 / 正气散 (zhèngqì sǎn), a traditional herbal formula. The Japanese reading しょうきさん is the on'yomi of the characters.