Research has shown that nearly 50% of patients with chronic conditions around the globe do not adhere to their prescribed medicine, leading to enormous cost to the healthcare providers. Non-adherence can be due to various forms and have multiple causes.

To address this need, Philips Research has developed Medication Non-adherence model. This tool will help in developing a systemic way of assessing medication non-adherence and providing decision support for targeted intervention to healthcare professionals. The aim of this study is to validate this model with 750 chronically ill patients in UK.

Inclusion Criteria:

• Patients with chronic disease between 18 -89 years old.
• Chronic medication use (> 3 medications; excluding analgesic, ointment and eye drop medication)
• Patients registered with a given Pharmacy at least 1 year before entering into the study.

Exclusion Criteria:

• Patients who are illiterate in English.
• Patients who are unable to give consent to the study.
• Enrolled in another clinical trial, which requires change in their routinely medication.
• Patients currently using automatic medication reminder services (excluding the pharmacy service).
• Patients with dementia or any other mental conditions, that might affects the accuracy of the answers provided.

patients with chronic illness taking more than 3 medications. These patients will be between the age of 18 - 89