The invention disclosed herein provides a method for treating Community-Acquired Bacterial Pneumonia (CABP) using 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, in either oral or IV doses or a combination of both.本文揭示之發明提供一種使用9-[(2,2-二甲基-丙基胺基)-甲基]-美諾四環素(minocycline)或其鹽,以口服或IV劑量或二者之組合治療社區肺炎(Community-Acquired Baxterial Pneumonia)(CABP)之方法。