Nordurine (Desmopressin Acetate)

Desmopressin Acetate, the active ingredient in Nordurine, is a vasopressin analog presented as an oral tablet for oral use. It treats central diabetes insipidus and nocturnal enuresis in patients who require antidiuretic therapy.

GNH USA supplies Nordurine as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Desmopressin acetate is used to manage disorders of water balance that involve the antidiuretic pathway.

- Central diabetes insipidus: reduces excessive urine output and helps normalize serum osmolality. - Nocturnal enuresis: decreases nighttime urine production and improves bladder control.

Desmopressin acetate may be associated with a range of adverse reactions, varying from mild to serious.

Common Side Effects: - Headache: mild to moderate intensity. - Nausea: occasional gastrointestinal discomfort. - Facial flushing: transient redness of the skin. - Hyponatremia (mild): low sodium levels without severe symptoms. - Abdominal pain: mild cramping or discomfort.

Serious or Rare Side Effects: - Severe hyponatremia: marked sodium depletion that can cause neurological symptoms. - Seizures: convulsive episodes related to electrolyte imbalance. - Water intoxication: excessive water retention leading to edema. - Allergic reaction: rash, itching, or angioedema. - Hyponatremic encephalopathy: altered mental status due to low sodium.

When prescribing desmopressin acetate, several precautions should be observed to ensure safe use.

- Monitor serum sodium: check electrolytes regularly, especially after dose changes. - Adjust dose in renal impairment: reduce dosage in patients with reduced kidney function. - Avoid in uncontrolled hypertension: fluid retention may worsen blood pressure. - Use cautiously in the elderly: increased susceptibility to hyponatremia. - Limit concomitant antidiuretic agents: avoid combining with other vasopressin analogues or diuretics that affect water balance. - Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.

Desmopressin acetate can interact with other medicines, affecting its efficacy or safety.

Major Interactions (Avoid): - Other vasopressin analogues: additive antidiuretic effect may cause severe hyponatremia. - Carbamazepine: increases metabolic clearance, reducing therapeutic effect. - Loop diuretics: may potentiate water loss and destabilize electrolyte balance.

Moderate Interactions (Monitor Closely): - NSAIDs: can enhance antidiuretic action and raise risk of fluid overload. - ACE inhibitors or ARBs: may augment hyponatremia risk. - Selective serotonin reuptake inhibitors (SSRIs): associated with hyponatremia, requiring monitoring. - Anticonvulsants (e.g., phenytoin): may alter desmopressin metabolism.