- Efficacy of Echinacea purpurea in patients with a common cold. A placebo-controlled, randomised, double-blind clinical trialB Schulten
Company Medical Service, Madaus AG, Cologne, Germany
Arzneimittelforschung 51:563-8. 2001..0112). EC31J0 was well tolerated and clinically effective in alleviating symptoms more rapidly than placebo in patients with a common cold...