Midecamycin an acetoxy-substituted macrolide antibiotic has effective on gram-positive and gram-negative bacteria acts by inhibiting bacterial protein synthesis.

Hemipyocyanine is the virulence factor of Gram-negative, aerobic rod bacterium Pseudomonas aeruginosa. Hemipyocyanine is an α-Amylase inhibitor.

Pleuromutilin is an inhibitor of bacterial protein synthesis by binding to the 50S ribosomal subunit of bacteria.