口服复方新诺明引起新生儿高铁血红蛋白血症，临床少见，我们遇到２例，报告如下。例１，患儿，男，２１天。因发热３天，全身发绀４小时入院。患儿于入院前３天无诱因出现发热，体温３８５℃，伴鼻塞。在院外按“上呼吸道感染”给予复方新诺明１／４片，每日２次口服，... Oral cotrimoxazole caused neonatal methemoglobinemia, clinically rare, we encountered two cases, the report is as follows. Example 1, children, male, 21 days. Due to fever for 3 days, systemic cyanosis 4 hours admission. 3 days before admission in children with no incentive to cause fever, body temperature 38  5 ℃, with nasal congestion. In the hospital according to “upper respiratory tract infection” to give compound cotinine 1/4, 2 times a day orally, ...