作者运用升白欣治疗各种恶性肿瘤化疗所致白细胞减少症51例，采用肌肉注射50u，1／日连用5～7天，结果表明：升白欣可以迅速升高白细胞数，I度和Ⅱ度白细胞减少尤为显著，引例中显效39例，有效8例，总有效率92．2％，与G－csF相比疗效相当。该药升高白细胞后即使停药，亦无白细胞再度降低的现象，且毒副反应小，主要为发热和注射局部疼痛，对症处理多可缓解。 The authors used Shengbaixin to treat 51 cases of leukopenia caused by chemotherapy of various malignant tumors. They were treated with intramuscular injection of 50u for 1 to 5 days. The results showed that Shengbaixin can rapidly increase the number of white blood cells, I and II. The degree of leucopenia was particularly significant. In the cited cases, 39 cases were markedly effective, 8 cases were effective, and the total effective rate was 92.2%. The efficacy was comparable to that of G-csF. After the drug increases leukocytes, even if the drug is stopped, there is no phenomenon that the leukocytes are reduced again, and the toxicity is small, mainly due to fever and local injection pain, symptomatic treatment can be alleviated.