About: Antitussive Agent is a(n) research topic. Over the lifetime, 380 publication(s) have been published within this topic receiving 5776 citation(s).
Papers published on a yearly basis
TL;DR: Over the counter cough medicines for acute cough cannot be recommended because there is no good evidence for their effectiveness and the effect sizes were small and of doubtful clinical relevance.
Abstract: Objectives To determine whether over the counter cough medicines are effective for acute cough in adults. Design Systematic review of randomised controlled trials.
30 Nov 1999-Journal of Ethnopharmacology
TL;DR: AV was shown to have a good antitussive activity and was 1/20-1/40 as active as codeine on mechanically and electrically induced coughing in rabbits and guinea-pigs.
Abstract: The antitussive activity of Adhatoda vasica (AV) extract was evaluated in anaesthetized guinea pigs and rabbits and in unanaesthetized guinea pigs AV was shown to have a good antitussive activity Intravenously, it was 1/20-1/40 as active as codeine on mechanically and electrically induced coughing in rabbits and guinea-pigs After oral administration to the guinea-pig the antitussive activity of AV was similar to codeine against coughing induced by irritant aerosols
TL;DR: For example, this paper found that mucolytic agents are not consistently effective in ameliorating cough in patients with bronchitis, although they may be of benefit to this population in other ways.
Abstract: Background: Cough-suppressant therapy, previously termed nonspecific antitussive therapy, incorporates the use of pharmacologic agents with mucolytic effects and/or inhibitory effects on the cough reflex itself. The intent of this type of therapy is to reduce the frequency and/or intensity of coughing on a short-term basis. Methods: Data for this review were obtained from several National Library of Medicine (PubMed) searches (from 1960 to 2004), which were performed between May and September 2004, of the literature published in the English language, limited to human studies, using combinations of the search terms "cough," "double-blind placebo-controlled," "antitussive," "mucolytic," "cough clearance," "common cold," "protussive," "guaifenesin," "glycerol," and "zinc." Results: Mucolytic agents are not consistently effective in ameliorating cough in patients with bronchitis, although they may be of benefit to this population in other ways. Peripheral and central antitussive agents can be useful in patients with chronic bronchitis, but can have little efficacy in patients with cough due to upper respiratory infection. Some protussive agents are effective in increasing cough clearance, but their long-term effectiveness has not been established. DNase is not effective as a protussive agent in patients with cystic fibrosis. Inhaled mannitol is acutely effective in this patient population, but its therapeutic potential must be investigated further. Conclusions: These findings suggest that suppressant therapy is most effective when used for the short-term reduction of coughing. Relatively few drugs are effective as cough suppressants.
01 Oct 2003-Planta Medica
TL;DR: It is demonstrated, for the first time, that compounds 1 and 5 showed significant antitussive activities in guinea pig after cough induction by citric acid aerosol stimulation.
Abstract: Bioactivity-directed fractionation of the crude extract of Stemona tuberosa led to the isolation and characterization of four new stenine-type Stemona alkaloids, namely tuberostemonine J ( 2), tuberostemonine H ( 3), epi-bisdehydrotuberostemonine J ( 4) and neostenine ( 5), together with the known neotuberostemonine ( 1). These five isolated alkaloids were examined for antitussive activity in guinea pig after cough induction by citric acid aerosol stimulation. In this report, we demonstrated, for the first time, that compounds 1 and 5 showed significant antitussive activities. Further study of the structure-activity relationship on these isolated alkaloids and two synthetic analogues revealed that the saturated tricyclic pyrrolo[3,2,1- jk] benzazepine nucleus is the primary key structure contributing to the antitussive activity and all cis configurations at the three ring junctions are the optimal structure for the antitussive activity of stenine-type Stemona alkaloids.
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