[Drug-fever due to ajmaline (Tachmalin)]

A report is given on a patient in whom during treatment and prophylactic measures of paroxysmal tachycardias after intravenous application of ajmalin large attacks of fever with chills developed. The oral application evoked subfebrile temperatures and weakness. The drug-fever which was to be ascertained by exposition and omitting experiments was falsely explained for many years.