ˌklōr-ˌam-ˈfen-i-ˌkȯl, ˌklȯr-, -ˌkōl
(See also Overview of Antibiotics.)
The antibiotic chloramphenicol is used mainly to treat serious infections due to the few bacteria that are resistant to other antibiotics but are still susceptible to chloramphenicol. Its use is limited because it interferes with the production of blood cells in bone marrow, greatly reducing the number of blood cells (blood cell counts).
Chloramphenicol works by interfering with the bacteria's production of the genetic material and proteins needed to grow and multiply.