It is widely accepted that a number of medication related problems can occur post discharge when complicated medication regimens can often prove confusing. This can lead to mismanagement of medicines and early rehospitalisation of patients. Although these problems are frequently commented upon, research in this area is still lacking. The present project aims to examine an extension of the present IMM service by evaluating the impact/patient benefit of a customised outpatient service provided by clinical pharmacy staff to patients post-discharge. An increase in patients' medicines adherence, a greater satisfaction with information about their medicines, improved beliefs about the necessity of their medicines, a decrease in medicines-related problems, a decrease in re-hospitalisation rates, extended time to re-hospitalisation, and a decrease in overall costs of patients care is anticipated.