dosage
noun [ C usually singular ] formal uk/ˈdəʊ.sɪdʒ/ us/ˈdoʊ.sɪdʒ/
（一次的）剂量
the amount of medicine that you should take at one time
"What's the dosage?" "One spoonful three times a day." “服用多大剂量？”“每次一勺，一日三次。”
Do not exceed the recommended dosage. 一定不要超过医生建议的剂量。