04 Jun 2015 Blackmores Institute Pelargonium sidoides reduces cough and phlegm in bronchitis study 04 Jun 2015 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Pelargonium sidoides can reduce coughing duration and phlegm production in bronchitis, a new study shows. The study used an extract of pelargonium sidoides, EPs(®) 7630, given orally at human equivalent doses, after inducing acute bacterial bronchitis in mice and guinea pigs to assess its antitussive, secretolytic, and anti-inflammatory effects. × To continue reading this article, please Log In or Sign Up for access.