treatment with optocillin ( bay 1-1330 ) , a combination of 6- ( ( r ) -2- [ 3-methylsulfonyl-2-oxo-imidazolidine-1-carboxamido ] -2-phenyl-acetamido ) -penicillanic acid sodium salt ( mezlocillin , baypen ) and 5-methyl-3-phenyl-4-isoxazolyl-penicillin ( oxacillin , stapenor ) , proved effective in 90 % of the children , although 22 patients had been treated with other antibiotics prior to the use of this compound .
C0030842
penicillin
C0029983
oxacillin