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:
The patient was found to have no motile sperm with a normal sperm count, while taking a dose of 400 mg/day of carbamazepine.	 carbamazepine
Answer:
400 mg/day