Nishidai Clinic, located in Nishidai, Itabashi Ward, Tokyo, has been an internal medicine clinic serving the community for over 50 years since its establishment in 1959. This clinic specializes in nephrology and hypertension, providing meticulous prescribing such as dosage adjustments and medication selection tailored to each patient's condition. As drug accumulation and side effects are more likely in patients with reduced renal or liver function, the clinic places great importance on adjusting medication doses based on blood test data. For hypertension and diabetes, the clinic offers tailored prescriptions that match the specific type of disease. Aiming to serve as a family doctor, the clinic values a holistic approach that treats the whole person, not just the disease. Utilizing information about complications, family history, lifestyle history, and personality, the clinic strives to explain conditions clearly while minimizing medical terminology. Based on this approach, the clinic generally prescribes medications on-site, and when patients are already taking medications, they verify information such as medication notebooks to avoid drug interactions and duplicate prescriptions.