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| English | Chinese |
| Lead-X Oral Solution | 力德希口服液 (菊花、枸杞、土茯苓、葡萄糖酸锌及亚硒酸所制口服液商品名；排铅药) |
| prostaglandin X sodium | 前列腺素X钠 (依前列醇钠 (epoprostenol sodium) 的别名；抗血小板药) |
| X-Prep | 斯普瑞 (番泻叶 (senna leaf) 片剂商品名；缓泻药) |
| X-Trozine S. R. Capsules | 司托秦缓释胶囊 (酒石酸苯甲曲秦 (phendimetrazine tartrate) 缓释胶囊剂商品名；减肥药) |
| xanthocillin X dimethyl | 二甲基黄青霉素 (抗肿瘤药) |