QVAR- beclomethasone dipropionate aerosol, metered
Teva Respiratory, LLC
1 INDICATIONS AND USAGE
1.1 Treatment of Asthma
QVAR is indicated in the maintenance treatment of asthma as prophylactic therapy in patients 5 years of age and older. QVAR is also indicated for asthma patients who require systemic corticosteroid administration, where adding QVAR may reduce or eliminate the need for the systemic corticosteroids.
Important Limitations of Use:
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QVAR is NOT indicated for the relief of acute bronchospasm.
2 DOSAGE AND ADMINISTRATION
2.1 Administration Information
Administer QVAR by the orally inhaled route only. Patients should prime QVAR by actuating into the air twice before using for the first time or if QVAR has not been used for over 10 days. Avoid spraying in the eyes or face when priming QVAR. QVAR is a solution aerosol, which does not require shaking. Consistent dose delivery is achieved, whether using the 40 or 80 mcg strengths, due to proportionality of the 2 products (i.e., 2 actuations of 40 mcg strength should provide a dose comparable to 1 actuation of the 80 mcg strength). Rinsing the mouth after inhalation is advised.
DOSAGE FORMS AND STRENGTHS
QVAR is a pressurized, metered-dose aerosol with a dose counter intended for oral inhalation containing beclomethasone dipropionate in the following 2 strengths:
QVAR 40 mcg is supplied in an aluminum canister with a beige plastic actuator with a dose counter and a gray dust cap. Each actuation delivers 50 mcg of beclomethasone dipropionate from the valve and 40 mcg from the actuator. QVAR 40 mcg is available as a 120-inhalation/8.7 g canister.
QVAR 80 mcg is supplied in an aluminum canister with a dark mauve plastic actuator with a dose counter and a gray dust cap. Each actuation delivers 100 mcg of beclomethasone dipropionate from the valve and 80 mcg from the actuator. QVAR 80 mcg is available as a 120-inhalation/8.7 g canister.
Mechanism of Action
Beclomethasone dipropionate is a corticosteroid demonstrating potent anti-inflammatory activity. The precise mechanism of corticosteroid action on asthma is not known. Corticosteroids have been shown to have multiple anti-inflammatory effects, inhibiting both inflammatory cells (e.g., mast cells, eosinophils, basophils, lymphocytes, macrophages, and neutrophils) and release of inflammatory mediators (e.g., histamine, eicosanoids, leukotrienes, and cytokines). These anti-inflammatory actions of corticosteroids may contribute to their efficacy in asthma.
