The estrogen patch (oestrogen patch) is a delivery system for estradiol, which is used as hormone replacement therapy to treat the problems of menopause, such as hot flashes and vaginal dryness, or to prevent osteoporosis. They are also used in hormone replacement therapy for male to female transgender people. The estrogen is given transdermally rather than via oral tablets, meaning that the estrogen patch carries similar risks and benefits that conventional forms of estrogen-only hormone replacement therapy have, but there are also important differences.
The route of administration of estrogens may have implications for adverse effects. For example, transdermal estrogen bypasses the liver so avoids the liver effects that occur with use of oral medications, and has slightly different effects on triglycerides and cholesterol than oral estrogens. Also, the specific type of estrogen is of importance, with transdermal 17-beta estradiol not having the increased risk of venous thromboembolism seen with ethinyl estradiol.
Administration
Applied twice weekly or weekly, depending on the brand, to fatty areas of the skin which crease less, preferably the lower abdomen or buttocks. Never to the breasts.
Brand names
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"Evorel patch" redirects here. For the brand of patch containing ethinyl estradiol and norelgestromin, see
Evra patch.
- Alora (United States)
- Climara (United States)
- Dermestril (United Kingdom)
- Elleste Solo (United States)
- Estraderm (United Kingdom)
- Estradot (United Kingdom)
- Evorel (United Kingdom)
- Fematrix (United Kingdom)
- Fempatch (United States)
- FemSeven (United Kingdom)
- Menostar (United States)
- Minivelle (United States)
- Vivelle-dot(United States)
Patches with progestogens
Some patch systems for hormone replacement therapy consist of a continuous estrogen patch in addition to an intermittent patch containing a progestogen (progestin), in order to decrease disturbances in the endometrium of the uterus. The combination of estrogen and progestogen make them somewhat similar to the contraceptive patch. For example, Sequidot consists of a continuous estradiol patch in addition to a norethisterone patch that is worn 14 days in each 28 day cycle.[1]
References
External links
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Receptor
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Agonists
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- (R)-DPN
- (S)-DPN
- (R,R)-THC
- (S,S)-THC
- 2,8-DHHHC
- 3α-Androstanediol
- 3β-Androstanediol
- 3α-Hydroxytibolone
- 3β-Hydroxytibolone
- 7-Oxo-DHEA
- 7α-Hydroxy-DHEA
- 7β-Hydroxyepiandrosterone
- 8β-VE2
- 16α-Hydroxy-DHEA
- 16α-Hydroxyestrone
- 16α-IE2
- 16α-LE2 (Cpd1471)
- Δ4-Androstenedione
- Δ5-Androstenediol
- 17α-Estradiol (alfatradiol)
- 17β-Estradiol (estradiol)
- Alestramustine
- Almestrone
- Anabolic steroids (prodrugs; e.g., testosterone, metandienone (methandrostenolone), others)
- Anethole
- Anol
- Atrimustine
- Benzestrol
- Bifluranol
- Bisdehydrodoisynolic acid
- Cadmium
- Carbestrol
- Chalconoids (e.g., isoliquiritigenin, phloretin, phlorizin (phloridzin), wedelolactone)
- Cloxestradiol
- Conjugated equine estrogens (e.g., sodium equilin sulfate, sodium equilenin sulfate)
- Coumestans (e.g., coumestrol, psoralidin)
- DHEA
- DHEA-S
- Deoxymiroestrol
- Dianethole
- Dianol
- Diarylpropionitrile
- Dieldrin
- Dienestrol
- Dienestrol acetate
- Diethylstilbestrol
- Diethylstilbestrol dipropionate
- Diosgenin
- Doisynoestrol (fenocycline)
- Doisynolic acid
- DY-131 (GSK-9089)
- Endosulfan
- Epiestriol
- Epimestrol
- ERB-196 (WAY-202196)
- Esterified estrogens (e.g., estrone sulfate, equilin sulfate, equilenin sulfate)
- Estetrol
- Estradiol benzoate
- Estradiol butyrylacetate
- Estradiol cypionate
- Estradiol dienanthate
- Estradiol dipropionate
- Estradiol diundecylate
- Estradiol diundecylenate
- Estradiol enanthate
- Estradiol furoate
- Estradiol hemihydrate
- Estradiol hemisuccinate
- Estradiol hexahydrobenzoate
- Estradiol monopropionate
- Estradiol palmitate
- Estradiol pivalate
- Estradiol propoxyphenylpropionate
- Estradiol stearate
- Estradiol succinate
- Estradiol undecylate
- Estradiol valerate
- Estramustine
- Estramustine phosphate
- Estrapronicate
- Estrazinol
- Estriol
- Estriol succinate
- Estriol tripropionate
- Estrobin (DBE)
- Estrofurate
- Estromustine
- Estrone
- Estrone acetate
- Estrone cyanate
- Estrone sulfate
- Estrone tetraacetylglucoside
- Estropipate
- Estropronicate
- Etamestrol (eptamestrol)
- Ethinyl estradiol
- Ethinyl estradiol 3-isopropylsulfonate
- Etynodiol diacetate
- Fenarimol
- Fenestrel
- FERb 033
- Flavonoids (incl. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin)
- Fosfestrol
- Furostilbestrol
- GSK-4716
- Hexestrol
- Hexestrol diacetate
- Hexestrol dicaprylate
- Hexestrol diphosphate
- Hexestrol dipropionate
- Hydroxyestrone diacetate
- Lavender oil
- Lignans (e.g., enterodiol, enterolactone)
- Mestranol
- Metalloestrogens (e.g., cadmium)
- Methallenestril
- Methestrol
- Methestrol dipropionate
- Methiocarb
- Methylestradiol
- Miroestrol
- Moxestrol
- Nilestriol
- Noretynodrel
- Orestrate
- Paroxypropione
- Phytosterols (e.g., β-sitosterol, campesterol, stigmasterol)
- Polyestradiol phosphate
- Prinaberel (ERB-041, WAY-202041)
- Propylpyrazoletriol
- Promestriene
- Resorcylic acid lactones (e.g., zearalanone, zearalenol, zearalenone, zeranal (zearalanol))
- Quadrosilan
- Quinestradol
- Quinestrol
- SKF-82,958
- Stilbenoids (e.g., resveratrol)
- Synthetic xenoestrogens (e.g., alkylphenols, bisphenols (e.g., BPA, BPF, BPS), DDT, parabens, PBBs, PHBA, phthalates, PCBs)
- WAY-166818
- WAY-200070
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Antagonists
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Enzyme |
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Others |
Precursors
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Indirect
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- Antigonadotropins (e.g., androgens, estrogens, progestogens, prolactin)
- Calcitriol (vitamin D)
- GnRH agonists (e,g, GnRH, leuprorelin)
- GnRH antagonists (e.g., cetrorelix)
- Gonadotropins (e.g., FSH, hCG, LH)
- Kisspeptin
- Plasma proteins (ABP, albumin, SHBG)
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