Before taking tamoxifen, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Santoprene NSF-61 grade is a Thermoplastic Elastomer (TPE) made from a cross link mixture of EPDM rubber and Polypropylene. This combination offers excellent flexibility and durability that are consistent with natural rubber.
However, all progesterone and progestin products are made in the laboratory. The term natural progesterone is really a misnomer. Natural progesterones, including the prescription products Crinone and Prometrium, are made from a chemical called diosgenin that is isolated from wild yam or soy.