In this task, you will be given sentences and a drug name in which your task is to indicate the doses of intake of that particular drug. A dose refers to a specified amount of medication taken at one time. Although there might be several correct answers, you need to write one of them.

Let me give you an example: An episode of subacute encephalopathy after the infusion of methotrexate (1500 mg/m2) (MTX) is reported in a young adult with metastastic gastric cancer.	 methotrexate
The answer to this example can be: 1500 mg/m2
Here is why: Here, the drug methotrexate mentioned after '	 ' has been mentioned to be taken as 1500 mg/m2 within brackets and hence should be tagged as dosage.

OK. solve this:
We describe a patient with a liver abscess due to Entamoeba histolytica, in whom metronidazole therapy (total dose, 21 g over 14 days) was complicated by reversible deafness, tinnitus, and ataxia and who relapsed 5 months later with a splenic abscess.	 metronidazole
Answer:
21 g over 14 days