Polymyxin B has a reputation. Doctors who reach for it against drug-resistant bacteria expect to watch the kidneys and the nerves, because those are the toxicities the drug is known for. Muscle damage is not on the usual list.
A case published August 24 in the peer-reviewed journal Infection and Drug Resistance describes a 63-year-old woman in whom it appears to have been. The way the injury showed up in her bloodwork is the part clinicians are likely to remember.
