Abstract
Summary
Interferon was detected in the cerebrospinal fluid (CSF) of monkeys injected iv or im with 30 million units of human leukocyte interferon. The im injection maintained a long-lasting plateau at about l/30th of the corresponding level of interferon in the serum. Interferon injected into the cerebrospinal canal was cleared from CSF at a similar rate as it disappeared from blood after iv administration of a high dose. A relatively stable serum level was maintained for 12-24 hr after the injection of interferon into the CSF space.
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