Xylometazoline: English spelling of Xylometazolin (alpha sympathomimetic)
Xylometazoline is the English spelling of the active ingredient Xylometazolin (with y and without e at the end), both forms refer to the same active substance. Internationally, the English form is mainly used on imported products and in English studies. On /wirkstoff/xylometazolin you will find the detailed German pillar page.
Xylometazoline belongs to the group of directly acting alpha sympathomimetics and has been used since the 1960s as a topical decongestant for acute rhinitis, allergic rhinitis, and sinusitis. Well-known brand names are Otriven, Olynth, Snup, and nasal spray. It is one of the best-selling over-the-counter medications in German pharmacies and drugstores.
Mechanism of action
Xylometazoline is an imidazoline derivative and binds selectively to alpha 1 adrenoreceptors in the nasal mucosa. In addition, it acts as an agonist at alpha 2 adrenoreceptors, particularly postsynaptically in blood vessels. Activation of alpha receptors leads to vasoconstriction of submucosal nasal blood vessels, reducing mucosal swelling and secretion production.
Clinically, the decongestant effect occurs within 5 to 10 minutes and lasts 6 to 8 hours. This long duration of action is a significant advantage over older substances such as phenylephrine (duration of action 1 to 4 hours).
Topical application limits systemic absorption to approximately 5 to 10 percent of the applied dose. With correct use, systemic side effects are therefore rare. However, with overdose, frequent use, or in infants, systemic effects (tachycardia, hypertension, central nervous system effects) can become clinically relevant.
Areas of application
- Acute rhinitis (common cold): for nasal congestion
- Allergic rhinitis: acute symptomatic treatment
- Sinusitis: to improve drainage
- Otitis media: to improve Eustachian tube function
- Before diagnostic or therapeutic procedures in the nose
- Tubal catarrh: to facilitate pressure equalization before air travel
Dosage and use
Adults and children from 12 years: 0.1 percent solution, one spray or one to two drops per nostril two to three times daily.
Children 2 to 11 years: 0.05 percent solution, one spray or one to two drops per nostril two to three times daily. Infants and toddlers under 2 years: 0.025 percent solution specifically for infants, one drop per nostril one to two times daily. Use in infants under 4 weeks only on medical prescription.
Maximum duration of use: 7 days at a time to avoid rhinitis medicamentosa (reactive swelling of the nasal mucosa after discontinuation). For longer-lasting symptoms, medical consultation is recommended.
Side effects
Frequent: local irritation of nasal mucosa, burning, dryness, sneezing.
Occasional: reactive mucosal swelling after discontinuation (rhinitis medicamentosa) with prolonged use, headaches, nausea.
Rare but important: in infants and toddlers, overdose can cause systemic effects with bradycardia, hypotension, sedation up to coma (paradoxical central nervous system effects). In adults, tachycardia, hypertension, sleep disturbances, anxiety with high doses. Anaphylactoid reactions.
Important: rhinitis medicamentosa is a common clinical problem after several weeks or months of use. Patients complain of increasing nasal congestion, which can only be temporarily relieved by increasingly frequent use. Withdrawal requires weeks, sometimes with medical support.
Drug interactions
- MAO inhibitors (tranylcypromine) and tricyclic antidepressants (amitriptyline): potential hypertensive reaction, especially with systemic absorption
- Other sympathomimetics: additive cardiovascular effects
- Alpha blockers: antagonistic effect
- Volatile inhalation anesthetics: additive arrhythmia risks with systemic absorption
Special information
Pregnancy and breastfeeding: short-term use when needed is possible, long-term use should be avoided. For pregnancy rhinitis, saline rinses and inhalations are first-line.
Narrow-angle glaucoma and benign prostatic hyperplasia: systemic absorption can worsen these conditions; patients should discuss use beforehand with their healthcare provider.
Hypertension and cardiovascular disease: in patients with high blood pressure or coronary heart disease, xylometazoline should only be used short-term and at the lowest effective dose.
Infants and toddlers: only use the special 0.025 percent infant solution, never use adult concentrations. In infants under 4 weeks only on medical prescription.
You may also be interested in
- Xylometazolin, detailed German pillar page
- Oxymetazolin, another imidazoline derivative (e.g., Nasivin)
- Phenylephrine, shorter-acting decongestant
- Pseudoephedrine, oral-acting alternative
- Azelastine, antihistamine nasal spray for allergic rhinitis
Frequently asked questions
Is xylometazoline the same as xylometazolin?
Yes. Xylometazoline is the English spelling (e at the end), xylometazolin the German form. Both refer to the same active substance (ATC R01AB06), a topical alpha sympathomimetic.
What is rhinitis medicamentosa?
With prolonged use beyond about 7 days, the nasal mucosa reacts paradoxically with reactive swelling, which can only be temporarily relieved by increasingly frequent and higher doses. This dependence makes the rhinitis chronic. Withdrawal requires several weeks, sometimes with glucocorticoid nasal spray or medical support. The most important prevention is strict limitation of use to a maximum of 7 days.
How quickly does xylometazoline work?
The decongestant effect occurs within 5 to 10 minutes after application and lasts 6 to 8 hours. This allows two to three times daily use over a short period.
Can I give xylometazoline to my baby?
In infants and toddlers, the special infant solution with 0.025 percent must be used. Adult solutions can cause severe systemic reactions with bradycardia and sedation in infants. In infants under 4 weeks only on medical prescription.
Sources
- Gelbe Liste, Xylometazolin active substance profile
- AWMF guidelines rhinosinusitis
- BfArM, Federal Institute for Drugs and Medical Devices
- EMA product information xylometazoline preparations
Legal notices and disclaimer
The information provided on this page is for general information purposes only and does not constitute medical advice, diagnosis, or treatment recommendation. It does not replace the advice of a licensed physician or pharmacist. Medications should only be taken on medical prescription or as dispensed by a pharmacy. All information is based on expert information published at the time of creation and recognized scientific sources; the current product information from the manufacturer is always authoritative. Sanoliste assumes no liability for completeness, currency, or accuracy of the information presented. In a medical emergency, call emergency number 112.