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Pharmaceutical and Healthcare Online Databases.
Over 100,000 approved drugs and health products.
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Level 1
R - Respiratory System
R01 - Nasal Preparations
R02 - Throat Preparations
R03 - Drugs for Obstructive Airway Diseases
R05 - Cough and Cold Preparations
R06 - Antihistamines for Systemic Use
R07 - Other Respiratory System Products
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