Last year, sales of influenza drugs fell more than 60% from the previous year. The prescription of Tamiflu, the most commonly used, has dropped sharply. In the fourth quarter of last year, the season of full-fledged flu, prescriptions for Tamiflu and generics decreased by more than 99%. As the number of flu patients sharply declined due to reinforced hygiene management following the spread of the new COVID-19, the market for treatments also shrank.

According to the drug research institute UBIST on the 21st, the amount of outpatient prescriptions for flu treatments last year was ₩8.4 billion, a 61.8% decrease from the previous year. It has shrunk from ₩44.7 billion in 2019 to one-fifth in two ye