Duration of Claritin (Loratadine) for Rhinitis

Treatment Duration by Rhinitis Type

The American Academy of Allergy, Asthma, and Immunology recommends using loratadine continuously throughout the pollen season for optimal symptom control in patients with seasonal allergic rhinitis 1
The American Academy of Allergy, Asthma, and Immunology suggests that loratadine can be used as-needed for episodic symptoms in patients with intermittent exposure, though continuous use provides superior control in patients with seasonal allergic rhinitis 1
The American Academy of Allergy, Asthma, and Immunology recommends ongoing daily use of loratadine for sustained symptom control in patients with perennial allergic rhinitis given year-round allergen exposure 1

Loratadine is less effective for nasal congestion than for other nasal symptoms, such as sneezing, itching, and rhinorrhea, in patients with allergic rhinitis, according to the American Academy of Allergy, Asthma, and Immunology 1, 2
The American Academy of Allergy, Asthma, and Immunology states that loratadine is less effective than intranasal corticosteroids for overall allergic rhinitis control in patients with severe symptoms or significant nasal congestion 1, 2
For patients with severe symptoms or significant nasal congestion, the American Academy of Allergy, Asthma, and Immunology recommends intranasal corticosteroids as superior first-line agents 1, 3

The American Academy of Allergy, Asthma, and Immunology suggests using loratadine for mild to moderate allergic rhinitis where nasal congestion is not the predominant symptom 2
The American Academy of Allergy, Asthma, and Immunology recommends loratadine for patients who prefer oral therapy or cannot tolerate intranasal medications 1
The American Academy of Allergy, Asthma, and Immunology states that loratadine is generally ineffective for nonallergic rhinitis, so it should be avoided in mixed rhinitis unless combined with other agents 1, 2

The American Academy of Allergy, Asthma, and Immunology notes that loratadine causes no sedation at recommended doses, making it preferable to first-generation antihistamines 1, 2
The American Academy of Allergy, Asthma, and Immunology states that loratadine can be used long-term without concern for tachyphylaxis or rhinitis medicamentosa, unlike topical decongestants 3

The American Academy of Allergy, Asthma, and Immunology recommends not using loratadine alone for severe nasal congestion, but considering combination therapy with pseudoephedrine or switching to intranasal corticosteroids 1, 2
The American Academy of Allergy, Asthma, and Immunology advises not using loratadine for nonallergic rhinitis, as it is generally ineffective for vasomotor rhinitis or NARES, and intranasal corticosteroids are more appropriate 1, 2