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1·Leucovorin may also be used to prevent the side-effects of pyrimethamine.

另外，可使用亚叶酸防止乙嘧啶的副作用。

2·Injectable leucovorin, a generic drug, is a common part of chemotherapy treatment for colorectal cancer.

注射用亚叶酸钙是一种普通药物，经常做为结直肠癌化疗方案的一种药物。

3·The two companies that make leucovorin, a generic cancer drug that's in short supply, are shedding some light on what's causing the shortage.

两个供应亚叶酸钙的公司-该药是一种普通肿瘤药物，目前处于短缺中-吐露了造成该药短缺的部分原因。