Information about Tamoxifen
Tamoxifen Raloxifen nci-vol-2738-300
Tamoxifen is a nonsteroidal antiestrogen that is widely used in the treatment and prevention of breast cancer.
Liver safety of Tamoxifen
Long term tamoxifen therapy has been associated with development of fatty liver, steatohepatitis, cirrhosis, and rare instances of clinically apparent acute liver injury.
Mechanism of action of Tamoxifen
Tamoxifen (ta mox' i fen) is referred to as a selective estrogen receptor modulator with tissue specific actions because it has estrogenic effects on bone, brain and liver, but antagonist activity on breast tissue. Tamoxifen may also have other, as yet undefined, anticancer effects.
FDA approval information for Tamoxifen
Tamoxifen was approved for use in the United States in 1977 and is still widely used, being considered a first line adjuvant therapy for breast cancer.
Current indications include both treatment of breast cancer and reduction of breast cancer risk in women at high risk.
Dosage and administration for Tamoxifen
Tamoxifen is available in 10 and 20 mg tablets generically and under several trade names such as Nolvadex and Tamone. Tamoxifen is also available as an oral solution (10 mg/5 mL). The usual dose for treating breast cancer is 20 to 40 mg daily, and for secondary prevention is 20 mg once daily for five years.
Side effects of Tamoxifen
Common side effects include hot flashes, nausea, diarrhea, weight change and fluid retention.
Alphabetic list of antineoplastic agents - 0-9 - A1 - A2 - A3 - A4 - A5 -A6 - B - C - D - E - F - G - H - I - JK - L - M - NO - PQ - R - S - T - UVW - XYZ
| Antineoplastic Agents |
| Alkylating Agents | Altretamine, Bendamustine, Busulfan, Carmustine, Chlorambucil, Cyclophosphamide, Dacarbazine, Ifosfamide, Lomustine, Mechlorethamine, Melphalan, Procarbazine, Streptozocin, Temozolomide, Thiotepa, Trabectedin |
| Platinum Coordination Complexes | |
| Antibiotics / Cytotoxic agents | Bleomycin, Dactinomycin, Daunorubicin, Doxorubicin, Epirubicin, Idarubicin, Mitomycin, Mitoxantrone, Plicamycin, Mithramycin, Valrubicin |
| Antimetabolites | |
| Purine Analogues | |
|
| Estrogens and antiestrogens |
| Estrogens |
|
| ER
agonists | * Steroidal: Alfatradiol
- Certain androgens/anabolic steroids (e.g., testosterone, testosterone esters, methyltestosterone, metandienone, nandrolone esters) (via estrogenic metabolites)
- Certain progestins (e.g., norethisterone, noretynodrel, etynodiol diacetate, tibolone)
- Clomestrone
- Cloxestradiol acetate
- Conjugated estriol
- Conjugated estrogens
- Epiestriol
- Epimestrol
- Esterified estrogens
- Estetrol†
- Estradiol
- Estradiol esters (e.g., estradiol acetate, estradiol benzoate, estradiol cypionate, estradiol enanthate, estradiol undecylate, estradiol valerate, polyestradiol phosphate, estradiol ester mixtures (Climacteron))
- Estramustine phosphate
- Estriol
- Estriol esters (e.g., estriol succinate, polyestriol phosphate)
- Estrogenic substances
- Estrone
- Estrone esters
- Ethinylestradiol#
- Hydroxyestrone diacetate
- Mestranol
- Methylestradiol
- Moxestrol
- Nilestriol
- Prasterone (dehydroepiandrosterone; DHEA)
- Promestriene
- Quinestradol
- Quinestrol
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| Progonadotropins | |
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| Antiestrogens |
|
ER
antagonists
(incl. SERMs
/SERDs
) | |
| Aromatase inhibitors | |
| Antigonadotropins | * Androgens/ anabolic steroids (e.g., testosterone, testosterone esters, nandrolone esters, oxandrolone, fluoxymesterone)
- D2 receptor antagonists (prolactin releasers) (e.g., domperidone, metoclopramide, risperidone, haloperidol, chlorpromazine, sulpiride)
- GnRH
agonists (e.g., leuprorelin, goserelin)
- GnRH
antagonists (e.g., cetrorelix, elagolix)
- Progestogens (e.g., chlormadinone acetate, cyproterone acetate, gestonorone caproate, hydroxyprogesterone caproate, medroxyprogesterone acetate, megestrol acetate)
|
| Others | * Mixed mechanism of action: Danazol
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| Estrogen receptor modulators |
| ER
|
|
| Agonists | * Steroidal: 2-Hydroxyestradiol
- 2-Hydroxyestrone
- 3-Methyl-19-methyleneandrosta-3,5-dien-17β-ol
- 3α-Androstanediol
- 3α,5α-Dihydrolevonorgestrel
- 3β,5α-Dihydrolevonorgestrel
- 3α-Hydroxytibolone
- 3β-Hydroxytibolone
- 3β-Androstanediol
- 4-Androstenediol
- 4-Androstenedione
- 4-Fluoroestradiol
- 4-Hydroxyestradiol
- 4-Hydroxyestrone
- 4-Methoxyestradiol
- 4-Methoxyestrone
- 5-Androstenediol
- 7-Oxo-DHEA
- 7α-Hydroxy-DHEA
- 7α-Methylestradiol
- 7β-Hydroxyepiandrosterone
- 8,9-Dehydroestradiol
- 8,9-Dehydroestrone
- 8β-VE2
- 10β,17β-Dihydroxyestra-1,4-dien-3-one (DHED)
- 11β-Chloromethylestradiol
- 11β-Methoxyestradiol
- 15α-Hydroxyestradiol
- 16-Ketoestradiol
- 16-Ketoestrone
- 16α-Fluoroestradiol
- 16α-Hydroxy-DHEA
- 16α-Hydroxyestrone
- 16α-Iodoestradiol
- 16α-LE2
- 16β-Hydroxyestrone
- 16β,17α-Epiestriol (16β-hydroxy-17α-estradiol)
- 17α-Estradiol (alfatradiol)
- 17α-Dihydroequilenin
- 17α-Dihydroequilin
- 17α-Epiestriol (16α-hydroxy-17α-estradiol)
- 17α-Ethynyl-3α-androstanediol
- 17α-Ethynyl-3β-androstanediol
- 17β-Dihydroequilenin
- 17β-Dihydroequilin
- 17β-Methyl-17α-dihydroequilenin
- Abiraterone
- Abiraterone acetate
- Alestramustine
- Almestrone
- Anabolic steroids (e.g., testosterone and esters, methyltestosterone, metandienone (methandrostenolone), nandrolone and esters, many others; via estrogenic metabolites)
- Atrimustine
- Bolandiol
- Bolandiol dipropionate
- Butolame
- Clomestrone
- Cloxestradiol
- Conjugated estriol
- Conjugated estrogens
- Cyclodiol
- Cyclotriol
- DHEA
- DHEA-S
- ent-Estradiol
- Epiestriol (16β-epiestriol, 16β-hydroxy-17β-estradiol)
- Epimestrol
- Equilenin
- Equilin
- ERA-63 (ORG-37663)
- Esterified estrogens
- Estetrol
- Estradiol
- Estramustine
- Estramustine phosphate
- Estrapronicate
- Estrazinol
- Estriol
- Estrofurate
- Estrogenic substances
- Estromustine
- Estrone
- Etamestrol (eptamestrol)
- Ethinylandrostenediol
- Ethinylestradiol
- Ethinylestriol
- Ethylestradiol
- Etynodiol
- Etynodiol diacetate
- Hexolame
- Hippulin
- Hydroxyestrone diacetate
- Lynestrenol
- Lynestrenol phenylpropionate
- Mestranol
- Methylestradiol
- Moxestrol
- Mytatrienediol
- Nilestriol
- Norethisterone
- Noretynodrel
- Orestrate
- Pentolame
- Prodiame
- Prolame
- Promestriene
- RU-16117
- Quinestradol
- Quinestrol
- Tibolone
- Xenoestrogens: Anise-related (e.g., anethole, anol, dianethole, dianol, photoanethole)
- Chalconoids (e.g., isoliquiritigenin, phloretin, phlorizin (phloridzin), wedelolactone)
- Coumestans (e.g., coumestrol, psoralidin)
- Flavonoids (incl. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, biochanin A, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, penduletin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin)
- Lavender oil
- Lignans (e.g., enterodiol, enterolactone, nyasol (cis-hinokiresinol))
- Metalloestrogens (e.g., cadmium)
- Pesticides (e.g., alternariol, dieldrin, endosulfan, fenarimol, HPTE, methiocarb, methoxychlor, triclocarban, triclosan)
- Phytosteroids (e.g., digitoxin (digitalis), diosgenin, guggulsterone)
- Phytosterols (e.g., β-sitosterol, campesterol, stigmasterol)
- Resorcylic acid lactones (e.g., zearalanone, α-zearalenol, β-zearalenol, zearalenone, zeranol (α-zearalanol), taleranol (teranol, β-zearalanol))
- Steroid-like (e.g., deoxymiroestrol, miroestrol)
- Stilbenoids (e.g., resveratrol, rhaponticin)
- Synthetic xenoestrogens (e.g., alkylphenols, bisphenols (e.g., BPA, BPF, BPS), DDT, parabens, PBBs, PHBA, phthalates, PCBs)
- Others (e.g., agnuside, rotundifuran)
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Mixed
(SERMs
) | |
| Antagonists | |
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| GPER
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| Agonists | |
| Antagonists | |
| Unknown | |
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| AstraZeneca |
| Products | |
Predecessors and
acquired companies | |
| People | |
|
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