Samsca Post-marketing General Drug Use-results Survey in Patients With Hyponatremia in SIADH

Samsca Post-marketing General Drug Use-results Survey in Patients With Hyponatremia in Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) in Japan

The purpose of this study is to confirm the safety of tolvaptan in patients with hyponatremia in syndrome of inappropriate antidiuretic hormone secretion (SIADH) in Japan

Inclusion Criteria:

• Subjects with a definite diagnosis of SIADH in reference to "Diagnostic and Treatment Manual of the Hypersecretion of Vasopressin (SIADH), Revised in 2018"

Exclusion Criteria:

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