我县用湖北省沔县制药厂1979年3月19日生产的硝硫氰胺(7505)微粉型治疗日本血吸虫病169例(均为慢性早期患者),出现过敏性紫癜3例。现摘要报告如下:【例1】女性,35岁。1979年10月11～13日服硝硫氰胺350毫克,10月14日自诉双下肢酸软无力、腹痛。检查发现双膝关节周围有散在性瘀点,并有红肿及压痛。双侧小腿部各有4处瘀斑,周围有少许瘀点,皮肤潮红。躯干及上肢来见上述症状。体温37.5℃。患者于1970年服某西药踝 My county with Hubei Pixian pharmaceutical factory March 19, 1979 production of nitrocytamide (7505) micronized Japanese schistosomiasis treatment of 169 cases (both chronic early patients), 3 cases of allergic purpura. The summary report is as follows: [Example 1] Female, 35 years old. 1979 October 11 to 13 served nitrocellulose 350 mg, October 14 self-report double weakness of the lower extremities, abdominal pain. Examination found that there are scattered around the knee joint petechia, and swelling and tenderness. Bilateral calf each have 4 ecchymosis, a little petechia around, the skin flushing. Torso and upper limbs to see the symptoms. Body temperature 37.5 ℃. The patient took a Western ankle in 1970