patients with infective endocarditis caused by penicillin-sensitive streptococci ( minimal inhibitory concentration for penicillin of 0.1 microgram/ml or less ) may be treated successfully with one of the following regimens : aqueous penicillin g administered intravenously for four weeks , intravenous aqueous penicillin g for four weeks combined with streptomycin for the first two weeks of therapy , or parenterally administered penicillin plus streptomycin for two weeks .
C0014121
infective endocarditis
C0038425
streptomycin