The invention provides the use of a compound of Formula (I), or metallated derivative thereof, in the preparation of a medicament for killing or attenuating the growth of microorganisms by a method which does not comprise exposing the compound to a photodynamic therapy light source or a sonodynamic therapy...http://www.google.com.au/patents/US7977474?utm_source=gb-gplus-sharePatent US7977474 - Uses of porphyrin compounds
