Sulfonamides and cephalosporins the worst antibiotics for serious cutaneous reactions: study

The study was the first to compare the risks of cutaneous reactions across antibiotic classes, according to the researchers.

Frequently prescribed oral antibiotics can increase the risk of serious cutaneous adverse reactions in older adults almost threefold, a Canadian study suggests.

While antibiotics were a recognised cause of cutaneous adverse drug reactions (cADRs), University of Toronto researchers said previous studies had not compared the relative risks between antibiotic classes.