Inhibition of theophylline metabolism by interferon.
D004340:Drug Contamination; D006801:Humans; D007252:Influenza Vaccines / Q000494:pharmacology*; D007372:Interferons / Q000494:pharmacology*; D013806:Theophylline / Q000037:antagonists & inhibitors*
D007252:Influenza Vaccines; D007372:Interferons; D013806:Theophylline