The manufacturer of Premarin was purchased by Pfizer in what year?
Premarin Premarin is the brand name for an estrogen medication that consists of conjugated estrogens isolated from the urine of pregnant mares (pregnant mares' urine). It is manufactured by Wyeth (now a part of Pfizer), and was first marketed in 1941 and 1942 in Canada and the United States, respectively, for the treatment of menopausal symptoms.
G.D. Searle, LLC G.D. Searle, LLC is a wholly owned trademark of Pfizer. It is currently used mainly as a distribution trademark for various pharmaceuticals that were developed by G. D. Searle & Company (often referred to as Searle). Prior to its 1985 merger with Monsanto, Searle was a company focusing on life sciences, specifically pharmaceuticals, agriculture, and animal health.