Question: What Swiss multinational healthcare company, introduced the steroidal progestin, Trengestone, in 1974?
Sentence (from "Pentagestrone acetate"): Pentagestrone acetate, along with quingestrone (the 3-cyclopentyl enol ether of progesterone), is said to have very similar properties to those of dydrogesterone, a pure progestogen and close analogue of progesterone.
Relevant evidence: No