Desmopressin Injection 4 mcg is a highly purified synthetic antidiuretic hormone, formulated at an accurate dosage of 4 micrograms. It is specifically designed for patients requiring precise, low‑dose regulation of antidiuretic function. Unlike other strengths, this dosage better matches the therapeutic needs of individuals with mild to moderate antidiuretic abnormalities, combining high safety and targeted efficacy.The main ingredient is desmopressin, which mimics the physiological function of endogenous antidiuretic hormone (ADH).