The authors report an 85-year-old patient admitted
because of cognitive impairment. During examination
hypertension and hypokalaemia were found. After some
time it was discovered that the patient was eating too much liquorice. The case demonstrates that liquorice intoxication should be considered as a cause of hypertension in old age. Furthermore the case demonstrates that missing an intoxication is a pitfall for medical history taking of patients with cognitive impairment.