The choice of drugs for treatment of allergic rhinitis depends on the severity of symptoms and whether they are intermittent or persistent (see Table 1).

View the Comparison Table: Some Oral Drugs for Allergic Rhinitis

View the Comparison Table: Some Nasal Sprays for Allergic Rhinitis

Allergic rhinitis can be classified as seasonal, perennial, or episodic. It is often associated with allergic conjunctivitis, rhinosinusitis, and asthma.

H₁-ANTIHISTAMINES — Oral – Oral second-generation H₁-antihistamines are the preferred first-line treatment for relief of the itching, sneezing, and rhinorrhea that characterize mild-to-moderate allergic rhinitis. They are less effective for nasal congestion.

View the Comparison Table: Some Nasal Sprays for Seasonal Allergic Rhinitis

The use of drugs to prevent and control symptoms of allergic disorders can be optimized when patients avoid exposure to specific allergens and/or environmental conditions that trigger or worsen their symptoms.

The FDA has approved a nasal spray fixed-dose combination (Dymista – Meda) of the H₁-antihistamine azelastine (Astelin, Astepro, and generics) and the corticosteroid fluticasone propionate (Flonase, and generics) for treatment of seasonal allergic rhinitis (SAR) in patients ≥12 years old who need both medications for symptomatic relief. It is the first nasal spray to be approved in the US that contains both an H₁-antihistamine and a corticosteroid.

The FDA has approved 2 intranasal HFA (hydrofluoroalkane) aerosols of the corticosteroids beclomethasone dipropionate (Qnasl – Teva Respiratory) and ciclesonide (Zetonna – Sunovion) for once-daily treatment of seasonal and perennial allergic rhinitis. They are the first HFA nasal steroids to become available in the US (HFA propellants do not deplete the ozone layer). Both drugs are already available for these indications as aqueous nasal sprays. Aqueous ("wet") formulations can cause adverse effects such as postnasal drip, moist feeling in the nose, strong odor, and bitter aftertaste, which could reduce patient compliance and may lead to discontinuation of the medication; the new pressurized, odorless, non-aqueous ("dry") HFA formulations may be better tolerated.

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