| abstract |
Disclosed is a pyrazolonaphthyridine compound represented by the formula:n nwherein R 1 is represents hydrogen, lower alkyl, aralkyl, or substituted or unsubstituted aryl, R 2 represents hydrogen, lower alkyl, thienyl, substituted or unsubsutituted aryl, hydroxy or amino, or a pharmaceutically acceptable salt thereof. n The compound possesses antiinflammatory effect, immunosuppressive effect, broncho-dilatory effect and hair growth-stimulative effect. |