Answer
In Otrivine Extra Dual Relief nasal spray, xylometazoline hydrochloride acts on adrenergic receptors to constrict blood vessels, while ipratropium bromide reduces nasal secretions by competitively blocking cholinergic receptors around the nasal epithelium.
Sources for this answer
- Otrivine Extra Dual Relief 0.5 mg/ml + 0.6 mg/ml nasal spray, solutionHaleon Dungarvan · emc · SmPC §5.1 Pharmacodynamic properties · Version 7Document updated
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