# Diabetes Insipidus (Central) - Category: chronic - Review status: reviewed (every claim checked against a document named on this page) - Sources: Endocrine Society Clinical Practice Guidelines · Egyptian National Drug Formulary, endocrine 2024, desmopressin acetate monograph, cranial diabetes insipidus (printed p. 242) - Verified date: 2026-08 ## Verified against - Egyptian National Drug Formulary, endocrine 2024, desmopressin acetate monograph, cranial diabetes insipidus (printed p. 242) - Arginine Vasopressin Disorder (Diabetes Insipidus) - disease-level clinical article (diabetes-insipidus-referral-clinical.txt) ## Treatment metadata - Desmopressin acetate — 0.1 mg — oral.solid - Referral & safety-netting (no drug therapy) ## Complete treatment card ```text DIABETES INSIPIDUS (CENTRAL) Sources: Endocrine Society Clinical Practice Guidelines · Egyptian National Drug Formulary, endocrine 2024, desmopressin acetate monograph, cranial diabetes insipidus (printed p. 242) Review status: REVIEWED against Egyptian National Drug Formulary, endocrine 2024, desmopressin acetate monograph, cranial diabetes insipidus (printed p. 242), Arginine Vasopressin Disorder (Diabetes Insipidus) - disease-level clinical article (diabetes-insipidus-referral-clinical.txt) (2026-08) IS IT THIS? - reference only, to read alongside your own examination SYMPTOMS - what the patient reports (6) - Excess thirst, excess urination, and waking at night to void are shared by both central and nephrogenic forms; urine output exceeds 3 L a day in adults [excess thirst] - Waking to urinate is often the earliest clue to mild concentrating trouble, though it is a nonspecific complaint on its own - In a child the picture can be vague, with severe dehydration, constipation, vomiting, fever, irritability, poor growth, or failure to thrive [constipation · dehydration · failure to thrive · fever · irritability · vomiting] - A child with a brain tumor may add headaches and visual disturbance on top of the usual thirst and urination symptoms - The central form can also bring weakness, tiredness, low energy, and muscle aches [fatigue · muscle pain] - The central form has been linked to lower bone density in the lower spine and hip, for reasons not fully understood TESTS (12) - Polyuria is defined by weight-based volume thresholds that fall with age, from over 150 mL per kg a day at birth down to over 50 mL per kg a day in older children and adults - Dilute urine is defined as an osmolality under 300 with a serum sodium that is normal or high - A urine osmolality above 800 shows the kidney is responding normally to hormone and rules out the central form - A high serum sodium above 146 points toward the central or kidney-resistant form, while a low- normal or low sodium under 135 points toward drinking too much water - A high plasma osmolality of 300 or more is typical of the central or kidney-resistant form, while a normal or low level of 280 or less points to excess drinking - During fluid restriction, the urine stays dilute instead of concentrating properly in both the central and kidney-resistant forms - After water restriction, desmopressin raises urine concentration by over 100 percent in complete central disease and up to 50 percent in the partial form - In the kidney-resistant form, desmopressin barely raises urine concentration in the partial type and not at all in the complete type - The central form is confirmed by high plasma concentration together with dilute urine and a urine output above 4 to 5 mL per kg per hour for two hours running after surgery - Copeptin, a more stable stand-in for the hormone itself, tracks closely with true hormone levels across a wide range of concentrations - Infusing concentrated saline while measuring copeptin is now favored by many specialists over the older fluid-restriction test - A gadolinium-enhanced MRI of the pituitary region looks for structural causes such as a tumor, an empty sella, or infiltrative disease IF NOT THIS - what else fits (10) - Drinking too much water on its own, apart from any hormone problem, causes polyuria - Sugar spilling into the urine in poorly controlled diabetes mellitus causes polyuria - A high-protein diet driving urea excretion can cause polyuria - Receiving a lot of IV sugar-water solution or other fluids can itself produce high urine output - Breakdown of body tissue generating urea can drive polyuria - Mannitol use is a recognized cause of polyuria - Irritable bladder syndrome is on the differential for urinary frequency - Nocturia can simply reflect drinking fluids close to bedtime - In men, an enlarged prostate is a common cause of nighttime urination - Diabetes mellitus itself is a common cause of nighttime urination Source StatPearls "Arginine Vasopressin Disorder (Diabetes Insipidus)" - disease-level clinical article Status traced to the source above 1. DESMOPRESSIN ACETATE [1st line] Adult Initially 0.1 mg three times daily; total daily oral dose normally lies in the range of 0.2 to 1.2 mg (usual maintenance 0.1 mg to 0.2 mg three times daily) - long-term Peds Specialist pediatric endocrinology titration only Source Egyptian National Drug Formulary, endocrine 2024, desmopressin acetate monograph, cranial diabetes insipidus (printed p. 242) Why Synthetic vasopressin analogue that replaces the antidiuretic hormone deficient in central diabetes insipidus, reducing excessive urine output by increasing water reabsorption in the kidney; ineffective in nephrogenic DI, where the kidney cannot respond to the hormone at all. Caution There is a risk of severe hyponatremia and water intoxication; monitor fluid intake and serum sodium regularly. Instruct patient to drink only when thirsty. The formulary's maintenance is 0.1-0.2 mg three times daily, with a total daily range up to 1.2 mg - the dose here stops at 0.8 mg, which is the more cautious end, not the label's ceiling. Desmopressin is effective ONLY in central DI and is ineffective in nephrogenic DI. Egypt DESMODJUST 0.1 MG 30 TABS. MARCYRL PHARM... 210.00 EGP (7.00/unit) OMEGAPRESS 0.1 MG 30 TABS. ATCO PHARMA >... 288.00 EGP (9.60/unit) 2. REFERRAL & SAFETY-NETTING (NO DRUG THERAPY) [1st line] Adult Source Arginine Vasopressin Disorder (Diabetes Insipidus) - disease-level clinical article (diabetes-insipidus-referral-clinical.txt) Why Carries the referral criteria and warning signs for this condition, which apply whichever treatment is chosen. Caution RED FLAG - Monitor for hyponatremia and educate on the warning signs of water intoxication and hyponatremia (nausea, vomiting, lethargy, headache, confusion, seizures, coma). Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy. ``` --- Dawaa Reference is a reference for prescribers, not a medical device, and does not replace clinical judgement. [Privacy policy](/privacy)