 To help avoid shortages of these drugs , the U.S. CDC recommended oseltamivir treatment primarily for people hospitalised with pandemic flu ; people at risk of serious flu complications due to underlying medical conditions ; and patients at risk of serious flu complications . The CDC warned that the indiscriminate use of antiviral medications to prevent and treat influenza could ease the way for drug @-@ resistant strains to emerge , which would make the fight against the pandemic that much harder . In addition , a British report found that people often failed to complete a full course of the drug or took the medication when not needed . 
