The original publication is available at http://www.samj.org.zaA study confirmed the existence of an immune reactive digitalis-like substance in normotensive and hypertensive people between the ages of 15 years and 64 years. In 13,6% of the population examined, values higher than 0,15 ng/ml of digitalis-like substances were obtained. The possible presence of this substance in a large proportion of patients should be borne in mind when interpreting digitalis measurements.Publisher’s versio
