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Pharmaceutical and healthcare online databases.
Over 200,000 approved drugs and health products.
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Level 5
R - Respiratory systemR03 - Drugs for obstructive airway diseasesR03D - Other systemic drugs for obstructive airway diseasesR03DB - Xanthines and adrenergicsR03DB04 - Theophylline and adrenergics
Theophylline and adrenergics
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