Oblon, Spivak, McClelland, Maier & Neustadt
Expectorant comprising hydroxyalkylcysteine derivative
 An expectorant comprising a hydroxyalkylcysteine derivative of the following formula (I) is disclosed. ##STR1## wherein n represents an integer of 1 to 4. The expectorant is stabile, has little side effects and toxicity, and exhibits an excellent expectorant effect. 
SS Pharmaceutical Co., Ltd.
A A
A61K A61P
inventional inventional
Tatsuhiko Hiroyuki Susumu Chikako Yoshikuni
Katori Mizuno Sato Kiyohara Itoh