The goal of this RCT is to evaluate the effect of the instructional video on improving patient compliance and reducing medication errors. The study will include adult kidney transplant recipients (18 years or older) at Erasmus MC who have undergone a kidney transplantation starting January 2026.

The main questions it aims to answer:

The primary aim of this study is to assess whether our developed video instruction, compared with the traditional verbal instruction, both of which are given shortly before training during admission, reduces the number of medication errors in kidney transplant patients.

The study will also examine the correlation between patient characteristics (such as age, comorbidities, and language proficiency) and medication errors. Additionally, patient-reported medication errors will be measured through a questionnaire completed during follow-up visits at the outpatient clinic, which is part of standard care.

The instructional video will be evaluated by a short questionnaire.

Inclusion Criteria:

• The patient is able to take the medication independently or with the help of someone else (professionals not included).
• After admission, the patient is discharged to their own home or home of friend/relative.
• The patient had a follow up at the outpatient clinic in the Erasmus Medical Center for at least one year after transplantation.
• The patient is able to read the medication list or an illiteracy-friendly medication list.

Exclusion Criteria:

• Patients under 18 years of age
• Patients who got discharged with a medication dispenser
• Refusal to participate in the study.
• Cognitive impairments that hinder participation.
• Patients and/or family who can not understand (language barrier) the instructional video.