multiple-week antibiotic therapies have cured actinomycotic infections caused by "a. viscosus" in every recorded case. therapies include treatment with penicillin, sulfadimethoxine, flucloxacillin, clindamycin, tetracycline, and ticarcillin. "a. viscosus" is usually resistant to vancomycin, metronidazole, cefalexin, and dicloxacillin. treatments last at least three weeks, with some exceptions. although "a. viscosus" is difficult to distinguish from other closely related actinomycetes, the general determination of being an actinomycete is sufficient for treatment of infections.