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Nasal irrigation / saline decongestant (non-pharmacological adjunct)

Sodium Chloride 0.9% Nasal Irrigation / Spray

Brand names: Sterimar, NeilMed Sinus Rinse, Nasodren, Physiomer

Sodium chloride 0.9% nasal irrigation or spray is an isotonic saline preparation used to moisten, cleanse and clear the nasal passages.

Dosing — being independently re-sourced

ClinCalc Pro is rebuilding its dose data from primary open sources — the manufacturer SmPC (eMC), the WHO Model Formulary and other official references — under clinician review. This drug's structured dose is not yet published here. Confirm all doses against the product SmPC and your local formulary before prescribing.

Clinical monograph

How it works

It acts physically by hydrating the nasal mucosa and mechanically flushing mucus, crusts and allergens from the nasal cavity rather than through a pharmacological action.

Prescribing in practice

  • Irrigation solutions should be prepared and used hygienically with appropriately clean or sterile water to avoid introducing infection.
  • It is a useful adjunct for rhinosinusitis, rhinitis and post-operative nasal care and is well tolerated.
  • It can be used alongside topical nasal medicines, ideally clearing the nose before applying them.

Monitoring

No monitoring is required; review symptomatic benefit and correct technique.

Counselling the patient

  • Use clean equipment and follow the recommended technique for irrigation.
  • Clear the nose with saline before using any prescribed nasal spray.
  • It is safe to use regularly for ongoing nasal symptoms.

Evidence & guidelines

Saline nasal irrigation is recommended as a supportive measure in NICE guidance for rhinosinusitis.

Reference: NICE NG120 Sinusitis; ENT-UK Saline Irrigation Guidelines; EPOS 2020; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.

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