ACE and Increased total eosinophil count: Drug reaction with eosinophilia and systemic symptoms, also known as drug-induced hypersensitivity syndrome, is an adverse drug reaction commonly associated with numerous drug classes, including anticonvulsants, sulphonamides, antidepressants, anti-inflammatory drugs, antibiotics, angiotensin-converting enzymes and beta blockers.1 The last drug prescribed may not always be the offending drug, as the hypersensitivity reaction has a delayed onset of up to three months.