医学术语 dosage 与 dose 有密切的关系，但两者表达不同的意思。以下，我将介绍这两个单词各自的定义并举例说明。
dose：依据药物用法处方的药量。
- Each packet contains one dose.
dosage：依据药物用法、给药频率及疗程处方的药量。
- The dosage was increased in size, frequency and duration.
以下例句将进一步说明这两个名词的正确用法。
- The patient has two more doses remaining in the prescribed dosage.
- The failure to complete the full dosage of an antibiotic can in some cases contribute to the target bacteria becoming resistant to that antibiotic.
