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Pharmaceutical and Healthcare Online Databases.
Over 100,000 approved drugs and health products.
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Level 5
R - Respiratory System
R03 - Drugs for Obstructive Airway Diseases
R03A - Adrenergics, Inhalants
R03AC - Selective beta-2-adrenoreceptor agonists
R03AC17 - Bitolterol
Bitolterol
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