New cough combo drug tested in healthy people for first time

This early-phase trial is testing a new combination drug called PBK_M2301, which contains two ingredients: levodropropizine (a cough suppressant) and Pelargonium sidoides extract (a herbal remedy). The study involves 32 healthy adults aged 19 to 64. Each person will take the combination drug and the two ingredients separately at different times, with a week break in between. The goal is to measure how the drug moves through the body and check for any safety issues.