We formulated de novo a poraprezinc-sodium alginate suspension (P-AG) as a
specific treatment for severe gingivostomatitis and administered it to 15 p
atients who had developed such inflammation while on chemotherapy. Very hig
h utility of P-AG was demonstrated and the response was classified as excel
lent in 10 patients and good in 5 patients. The mechanism of the beneficial
effect of P-AG in treatment of severe gingivostomatitis accompanied by hem
orrhagic erosion and ulcers is considered to involve the mucosal protective
effect, free radical scavenging activity and tissue repair promoting actio
n of poraprezinc together with the hemostatic action of sodium alginate.