This prospective study in 119 patients with cardiovascular diseases aimed to examine whether (a) illness representations mediate the relation of general maladaptive health beliefs to patients’ coping behaviours and (b) these relations are moderated by the patients’ perception of the amount of information provided by their physicians. Personal control and illness coherence mediated the relation of maladaptive health beliefs to coping behaviour. The amount of the provided information buffered the negative relation of maladaptive health beliefs to illness representations and coping. Thus, the detrimental effect of general maladaptive health beliefs may be counterbalanced by the amount of information provided by physicians.