Impact of Insulin Tregopil and Its Permeation Enhancer on Pharmacokinetics of Metformin in Healthy Volunteers: Randomized, Open‐Label, Placebo‐Controlled, Crossover Study oleh Anand Khedkar, Harold Lebovitz, Alexander Fleming, Alan Cherrington, Vinu Jose, Sandeep N. Athalye, Ashwini Vishweswaramurthy