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Inhalation decongestant

Eucalyptus with menthol

Brand names: Vicks, Karvol

A combination of aromatic inhalation ingredients used as a symptomatic decongestant for nasal and upper respiratory catarrh and congestion.

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

Eucalyptus and menthol vapours act as counter-irritants and produce a cooling sensation that gives a subjective feeling of improved nasal airflow rather than altering underlying mucosal swelling.

Prescribing in practice

  • Menthol-containing preparations must not be applied to or near the nostrils or face of infants and young children because of the risk of apnoea and laryngospasm.
  • It provides symptomatic relief only and does not treat any underlying infection.
  • Preparations are typically added to hot (not boiling) water for inhalation of the vapour.

Monitoring

No routine monitoring is required for this symptomatic preparation.

Counselling the patient

  • Add to hot, not boiling, water and inhale the vapour carefully to avoid scalds.
  • Do not apply menthol products to the nose or face of babies or young children.
  • This eases the feeling of a blocked nose but does not cure the cause.

Evidence & guidelines

Aromatic inhalations are used for symptomatic relief of nasal congestion, with benefit reflecting a subjective decongestant sensation.

Reference: 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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