Nitrosamine impurities management hidden ambush... The standard will be significantly strengthened. The diabetes treatment 'Januvia series', for which sales rights were recently transferred to Chong Kun Dang, is experiencing sluggishness in the prescription market. Following last year's drug price cut, the company suffered voluntary withdrawals due to excess impurities in the first half of this year, and the scale shrank by 13% in two years. According to UBIST, a pharmaceutical market research institute, on the 24th, the total outpatient prescriptions for the Januvia series (Januvia, Janumet, and Janumet XR) in the first half of this year were 75.4 billion won, down 8% from 81.9 billion won in the same period last year.