including under the brand names Progynon B by Schering, Dimenformon Benzoate by Roche-Organon, and Oestroform B by British Drug Houses. By the early 1940s, Ben-Ovocylin...

Ovocyclin P by Ciba, Progynon DP by Schering and Dimenformon Dipropionate by Roche-Organon were also marketed by the early 1940s. Later in the 1940s the brand...