Possible warfarin-erythromycin interaction.
D000368:Aged; D004357:Drug Synergism; D004917:Erythromycin / Q000009:adverse effects*; D005260:Female; D006801:Humans; D014859:Warfarin / Q000037:antagonists & inhibitors*
D014859:Warfarin; D004917:Erythromycin