In addition, a wide range of internal medical illnesses is treated in the Medical Clinic II in Braunfels.

In addition to the diagnosis and therapy of internal pathologies in particular, the patients are supported by a multidisciplinary geriatric team in being able to return to their usual environment after treatment. The clinic for geriatrics at Falkeneck in Braunfels is the only geriatric clinic for the Lahn-Dill district.