n.甲氨蝶呤；氨甲叶酸；氨甲蝶呤

Methotrexate is often used as a first-line treatment for rheumatoid arthritis.
美罗华通常被用作类风湿关节炎的一线治疗药物。
The patient was prescribed methotrexate to manage their psoriasis symptoms.
为了控制患者的牛皮癣症状，医生为其开了美罗华药方。
Methotrexate can be highly effective in preventing the growth of cancer cells.
美罗华在阻止癌细胞生长方面具有高度有效性。
Due to its immunosuppressive properties, methotrexate is also used in organ transplantation.
由于其免疫抑制特性，美罗华也被用于器官移植中。
It's essential to closely monitor liver function while taking methotrexate because it may cause liver damage.
在服用美罗华期间密切监控肝功能至关重要，因为它可能引起肝脏损伤。
The dosage of methotrexate must be carefully calculated based on the patient's body weight and medical condition.
美罗华的剂量必须根据患者体重和健康状况仔细计算。
Methotrexate therapy should not be initiated during pregnancy due to its potential teratogenic effects.
由于美罗华潜在的致畸效应，在妊娠期间不应开始这种疗法。
A common side effect of methotrexate includes nausea, which can often be managed with antiemetic medication.
美罗华的一个常见副作用是恶心，通常可以通过抗恶心药物进行管理。
For patients with juvenile idiopathic arthritis, methotrexate has proven to be an effective long-term treatment option.
对于幼年特发性关节炎患者来说，美罗华已被证明是一种有效的长期治疗方案。
Regular blood tests are necessary when using methotrexate to assess bone marrow suppression and any other adverse effects.
使用美罗华时需要定期做血液检查，以评估骨髓抑制和其他不良反应。