Chloramphenicol Capsule (Economycetin) is used for Severe bacterial infection, Typhoid fever Cholera, Eye infection, Bacterial infections of the outer ear, Plague and other conditions. Chloramphenicol Capsule (Economycetin) contains Chloramphenicol as an active ingredient. Chloramphenicol Capsule (Economycetin) works by stopping bacterial growth by stopping the production of proteins.