Here's a bit of info from the Standard Process website, but I've also attached their PDF's. Anyone familiar with these? I couldn't find a ton of info online.
Drenamin is a special combination product formulated to help maintain the healthy functioning of the adrenal glands, which are involved in innumerable physiological functions inside the body. Drenamin accomplishes this by supplying vital nutrients combined with bovine adrenal tissue proteins and bovine adrenal PMG™ extracts.†
The pituitary gland is often referred to as the master gland of the body. It is an endocrine gland that stores and secretes a number of hormones to regulate and balance many metabolic activities and physiological functions. Pituitrophin PMG contains Protomorphogen™ extracts which are uniquely derived nucleoprotein-mineral extracts that support cellular health. Bovine pituitary PMG™ extract helps maintain the pituitary gland in a good state of repair to support healthy pituitary function.†
Symplex F is a special combination formula containing Protomorphogen™ extracts from bovine ovary, adrenal, pituitary, and thyroid glands. The ovaries secrete several female sex hormones, including estrogen and progesterone. These hormones function in a feedback system balancing female sexual functions. Symplex F contains Protomorphogen™ extracts which are uniquely derived nucleoprotein-mineral extracts that support cellular health. Bovine ovary, adrenal, pituitary, and thyroid PMG™ extracts help maintain the healthy function of these corresponding organs and glands.†