Nocdurna (Desmopressin)

Desmopressin, the active ingredient in Nocdurna, is a vasopressin analog presented as a sublingual tablet for sublingual use. It is employed to reduce excessive urine output in central diabetes insipidus, nocturnal polyuria, and primary nocturnal enuresis in children, acting as a synthetic antidiuretic hormone analog.

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

Desmopressin acts on the antidiuretic hormone pathway to manage conditions characterized by excessive urine output.

Central diabetes insipidus: reduces polyuria by enhancing renal water reabsorption. Nocturnal polyuria: decreases nighttime urine volume, improving sleep continuity. Primary nocturnal enuresis in children: lowers bedwetting episodes by concentrating urine overnight.

Desmopressin may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects: - Headache: mild to moderate intensity. - Nausea or abdominal discomfort: transient gastrointestinal upset. - Facial flushing or mild skin erythema. - Mild hyponatraemia: low serum sodium without severe symptoms. - Sublingual irritation: local discomfort at the site of administration.

Serious or Rare Side Effects: - Severe hyponatraemia: can lead to seizures, coma, or cerebral oedema. - Water intoxication: excessive fluid retention causing electrolyte imbalance. - Allergic reactions: rash, pruritus, or anaphylaxis. - Thromboembolic events: rare clot formation in predisposed individuals.

Before prescribing Desmopressin, clinicians should consider several safety measures.

Monitor serum sodium: check baseline and periodic levels, especially in the elderly. Adjust dose in renal impairment: reduced clearance may increase risk of hyponatraemia. Caution in heart failure or hepatic disease: fluid overload can exacerbate condition. Avoid excessive fluid intake: patients should limit free water consumption while on therapy. Review concomitant hyponatraemia‑inducing drugs: assess need for dose modification. Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture.

Desmopressin can interact with other medicines that affect water balance or sodium levels.

Major Interactions (Avoid): - Thiazide diuretics: additive risk of hyponatraemia. - Selective serotonin reuptake inhibitors (SSRIs): increased likelihood of low serum sodium. - Non‑steroidal anti‑inflammatory drugs (NSAIDs): may potentiate antidiuretic effect.

Moderate Interactions (Monitor Closely): - ACE inhibitors or ARBs: monitor blood pressure and sodium. - Loop diuretics: may reduce Desmopressin efficacy. - Anticholinergic agents: possible alteration of sublingual absorption.