[The functioning of the interferon system with different methods and dosages of recombinant alpha 2-interferon (reaferon) administration].

In clinical trials in 24 healthy volunteers of different doses of reaferon inoculated intramuscularly and intravenously for 3 days a pyrogenic reaction was observed the intensity of which depended upon the dose and route of inoculation. Reaferon exerted a dose-dependent effect on the recipient's interferon system: with large doses the interferon response of leukocytes and the capacity of lymphocytes for gamma-IF synthesis were markedly inhibited, whereas low doses (2 million IU/day) caused no significant changes. The intravenous inoculation of reaferon produced a relatively high but short-term, and the intramuscular inoculation a relatively low but of longer duration antiviral activity in the blood serum.