Digoxin toxicity due to interaction of digoxin with erythromycin.

if they believe low alcohol drinks to be effectively alcohol free. Others wanting to limit their drinking by counting units may drink far more than their chosen amounts if they fail to make adjustments for extra strong drinks. There are two possible strategies for minimising these errors. Firstly, all drinks could have their alcohol content clearly labelled in units as well as in percentage alcohol by volume. This suggestion was endorsed by nearly all our subjects. Secondly, posters and leaflets providing current data on the strengths of commonly available drinks, similar to those provided by the Health Education Council for the tar and nicotine contents of cigarettes, could be widely distributed.