The therapeutic effects of nimodipine (GAS 66085-59-4) and ofloxacin (
GAS 82419-36-1) were investigated against experimental brain abscess f
ormation in rats. Nimodipine, a 1,4-dihydropyridine derivative, is che
mically related to nifedipine but the smooth muscle relaxant effect pr
eferentially acts on cerebral arteries. Ofloxacin is a member of 4-Qui
nolone broad spectrum antibiotics. Ninety-six male Sprague-Dawley rats
were inoculated intracortically with Staphylococcus aureus and then d
ifferent groups were treated with either saline. ofloxacin or the comb
ination of ofloxacin and nimodipine. The rate of brain abscess formati
on and mortality were considerably decreased by nimodipine and ofloxac
in therapy. Combination therapy was found histologically to be conside
rably more effective than ofloxacin alone against brain abscess format
ion in rats.