Primary polydipsia the response of the kidneys to vasopressin, thus reducing the kidney's ability to concentrate the urine. This means that psychogenic polydipsia may lead to test results (e.g. in a water restriction test) consistent with diabetes insipidus or SIADH, leading to misdiagnosis. Dry mouth is often a side effect of medications used in the treatment of some mental disorders, rather than being caused by the underlying condition. Such medications include antipsychotics, antidepressants, anticonvulsants, alpha agonists and anticholinergics. It should also be ensured that the thirst isn't caused by diuretic use (particularly thiazide diuretics), MDMA use, excessive solute intake or chronic alcoholism.
E-patient E-patient An e-patient is a health consumer who participates fully in his/her medical care, primarily by gathering information about medical conditions that impact them and their families, using the Internet and other digital tools. The term encompasses those who seek guidance for their own ailments and the friends and family members who go online on their behalf. E-patients report two effects of their health research: "better health information and services, and different, but not always better, relationships with their doctors." E-patients are active in their care and demonstrate the power of the Participatory Medicine or Health 2.0 / Medicine 2.0.