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Letrozole, sold under the brand name Femara among others, is an aromatase inhibitor medication that is used in the treatment of breast cancer for post-menopausal women. [ 1 ] It was patented in 1986 and approved for medical use in 1996. [ 4 ]
The liver is the main site of drug metabolism and the drug is metabolized by glucuronidation, hydroxylation and N-dealkylation. The metabolites are mainly excreted in the urine. [24] Letrozole has a standard daily dose of 2,5 mg and the drug has around 99,9% oral bioavailability. That means that the drug is absorbed fast and entirely.
Antiandrogens are a class of drug which bind and inhibit the androgen receptor, blocking the growth- and survival-promoting effects of testosterone on certain prostate cancers. Flutamide and bicalutamide are antiandrogens which are frequently used in the treatment of prostate cancer, either as long-term monotherapy, or in the initial few weeks ...
Drug Manufacturer Indication Adagrasib: In combination with cetuximab for the treatment of adults with KRAS G12C mutated locally advanced or metastatic colorectal cancer who have been previously treated with fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy [2]
Metronomic chemotherapy, which involves regularly giving patients low dosages of chemotherapy drugs, is one instance of this. [46] This technique has been shown to have the potential to change the tumor microenvironment and limit tumor growth. [47] It is yet unknown how best to employ metronomic chemotherapy, especially for varied cancer types ...
The drug also counteracts gynecomastia as well as fat and water retention following excessive aromatase production due to testosterone doping. [17] It is also used by steroid users to lower female sexual horomone levels following a cycle of steroids, often called a "post-cycle therapy", it is also used alongside Selective estrogen receptor ...
When used as drugs, the International Nonproprietary Names (INNs) end in -mab. The remaining syllables of the INNs, as well as the column Source, are explained in Nomenclature of monoclonal antibodies. Types of monoclonal antibodies with other structures than naturally occurring antibodies.
Drug agencies have issued warnings regarding this phenomenon in the prescribing information for GnRH agonists. As testosterone surge does not occur with GnRH antagonists, there is no need for patients to receive an antiandrogen as flare protection during prostate cancer treatment. GnRH agonists also induce an increase in testosterone levels ...