A case study is described to illustrate the need for vigilance in dete
cting drug-induced headache. A woman (''Jane'') volunteered for a head
ache research program, and assessment revealed a very high consumption
of headache medication. Jane was taking an average of 21 tablets per
day as well as receiving injections several times a week. The research
staff directed her to record her medication, and to take these record
s to her doctor for review. Two general practitioners and a psychiatri
st responded that there was no need for intervention, but the research
ers were sufficiently concerned that they encouraged her to find anoth
er doctor. The fourth doctor admitted her to hospital immediately for
detoxification with spectacularly beneficial results.