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2 studies found for:    Open Studies | "Antitussive Agents"

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Rank Status Study
1 Recruiting Effects of Su-Huang Antitussive Capsule on Cough Variant Asthma
Condition: Asthma
Interventions: Drug: Su-Huang antitussive capsule;   Drug: Sugar pill
2 Recruiting Effect of an add-on Treatment With Ivy Leaves Dry Extract on Lung Function in Bronchial Asthma
Condition: Asthma
Interventions: Drug: ivy leaves dry extract;   Drug: Placebo
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† Indicates status has not been verified in more than two years