Assertion: viagra's administration | /r/HasProperty | ritonavir
Facets:
Source sentences:
text: The concomitant administration of the protease inhibitor ritonavir substantially increases serum concentrations of sildenafil (11-fold increase in AUC).
text: The concomitant administration of the protease inhibitor ritonavir substantially increases serum concentrations of sildenafil (11-fold increase in AUC).