Lairesp (Oxymetazoline Hydrochloride)

Oxymetazoline is an alpha‑adrenergic agonist used to relieve congestion in the upper respiratory tract.

• Nasal congestion: reduces swelling of nasal mucosa for quick airflow improvement.
• Allergic rhinitis: alleviates blockage caused by allergic inflammation.
• Common cold: eases temporary nasal blockage during viral upper respiratory infections.

• Oxymetazoline acts as a selective alpha‑adrenergic receptor agonist on the smooth muscle of nasal mucosal blood vessels. Stimulation of these receptors causes vasoconstriction, which decreases blood flow, reduces mucosal edema, and opens the nasal passages, providing rapid decongestion.

Oxymetazoline may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Nasal irritation or burning sensation
• Dryness of the nasal mucosa
• Sneezing
• Mild headache
• Altered taste perception
• Transient epistaxis (nosebleed)

Serious or Rare Side Effects

• Rebound nasal congestion (rhinitis medicamentosa) with prolonged use
• Elevated blood pressure or hypertension
• Cardiac arrhythmias in susceptible individuals
• Severe nasal ulceration or tissue damage
• Allergic reactions including rash, itching or anaphylaxis

Before using Lairesp, consider the following safety measures.

• Duration of use: limit to three consecutive days to avoid rebound congestion.
• Pregnancy: consult a healthcare professional before use.
• Breastfeeding: discuss potential risks with a physician.
• Children under 6 years: not recommended unless directed by a clinician.
• Concurrent nasal surgery or trauma: avoid use until cleared by a surgeon.
• Store at ambient temperature: keep in the original container, protect from moisture and heat.

Oxymetazoline may interact with other medicines; awareness helps prevent adverse outcomes.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): risk of hypertensive crisis.
• Other topical nasal decongestants (e.g., phenylephrine): additive vasoconstriction may increase cardiovascular strain.
• Systemic sympathomimetics: may amplify blood pressure effects.

Moderate Interactions (Monitor Closely):\n- Antihypertensive agents: possible reduction in blood‑pressure‑lowering efficacy.

• Beta‑blockers: may blunt cardiovascular response.
• Tricyclic antidepressants or SSRIs: monitor for increased sympathetic activity.