The patient initially presented with an inguinal abscess requiring intravenous vancomycin. During his third infusion, he developed typical chest pain that resolved with cessation of the infusion. [pubmed.ncbi.nlm.nih.gov]

Kounis syndrome: an update on epidemiology, pathogenesis, diagnosis and therapeutic management. Clin Chem Lab Med. 2016;54:1545–1559. - PubMed Picard F., Sayah N., Spagnoli V., Adjedj J., Varenne O. [pubmed.ncbi.nlm.nih.gov]