Pfizer's (PFE) Zyvox antibiotic was effective in combating a highly drug-resistant and deadly...

|About: Pfizer Inc. (PFE)|By:, SA News Editor

Pfizer's (PFE) Zyvox antibiotic was effective in combating a highly drug-resistant and deadly form of tuberculosis called XDR-TB when added to patients' existing treatments. However, 82% of patients experienced side effects such as lower red and while blood cell counts, and damage to the optic and peripheral nerves. The side effects diminished when the drug dose was reduced or ended.