Metronidazole
"Was hospitalized with diverticulitis. Pain was acute. It made a grown man cry. After 4 days of IV injected Levaquin and another broad spectrum antibiotic, the white blood cell count was not going down. I constantly had blood drawn at 4 AM and results from the lab by 12 noon. The broad spectrum antibiotics controlled the white blood cell count from rising, but did nothing to decrease it. Even though I was on all liquid diet, and on morphine for pain, nothing was controlling the severity of the symptoms. It could have led to sepsis. An infectious diseases specialist was called for a consult and he added this antibiotic into the mix. In one day, this got the white blood cell count down and kept it going down after repeated blood draws."