lincomycin (lĭngˌkōmĪˈsĭn) [key], antibiotic isolated from bacteria of the genus Streptomyces. Similar in activity to erythromycin, it is effective against most gram-positive organisms including staphylococci, some streptococci, and anaerobic bacteria of the genus Clostridium (see Gram's stain). Diarrhea and nausea are common side effects of the drug.
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