I took malaria prophylactics.

我服用了预防疟疾的药。

Prophylactic urethrectomy is also performed in patients at high risk for recurrence, and is usually advocated for men with TCC of the prostatic stroma.

高复发风险的病患也会进行预防性尿道切除，通常是用于前列腺基质TCC病患。