dosage of inoculation

例句：

1. 1. The doctor prescribed a high dosage of medication for her.
   医生给她开了高剂量的药物。
2. 2. The patient needed to take the medicine at the recommended dosage.
   病人需要按照推荐的剂量服用药物。
3. 3. The drug has a low toxicity and can be taken at a low dosage.
   这种药物毒性低，可以以低剂量使用。