In the US, codeine is a controlled substance that can only be administered by prescription. Actually your answer is not correct. Cough â¦syrup containing codeine can be purchased from a pharmacist and siging a log book. I am a Pharmacist and at least in Tennessee this is legal.
Aromatase inhibitor: A drug that inhibits the enzyme aromatase and by that means lowers the level of the estrogen estradiol. Aromatase inhibitors represent a class of antiestrogens. Aromatase catalyzes the conversion of testosterone (an androgen) to estradiol (an estrogen) in many tissues including the adrenal glands, ovaries, placenta, testicles, adipose (fat) tissue, and brain. Estrogen is produced directly by the ovaries and is also made by the body using aromatase. Aromatase inhibitors cannot do anything about estrogen produced by the ovaries, but they do interfere with the body's use of aromatase. The growth of many breast cancers is promoted by estrogens.
Research published in 2011 showed that Aromasin can lower risk in high-risk, postmenopausal women who've never been diagnosed with breast cancer. Aromasin is not approved by the FDA for this use, but doctors may consider it a good alternative to tamoxifen or Evista.