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A contraceptive patch, also known as "the patch", is a transdermal patch applied to the skin that releases synthetic oestrogen and progestogen hormones to prevent pregnancy. They have been shown to be as effective as the combined oral contraceptive pill with perfect use, and the patch may be more effective in typical use.
The patch-free interval must not be longer than seven days; otherwise, additional non-hormonal contraceptive methods must be used, such as condoms. [6] Transdermal patches must always be applied on the same day of the week to the buttock, abdomen (belly), upper arm or upper back. [ 6 ]
Transdermal scopolamine is commonly used as a treatment for motion sickness. [8] The anti-hypertensive drug clonidine is available in transdermal patch form. [9] Emsam, a transdermal form of the MAOI selegiline, became the first transdermal delivery agent for an antidepressant approved for use in the U.S. in March 2006. [10]
Norelgestromin is available only as a transdermal contraceptive patch in combination with ethinyl estradiol. [6] The Ortho Evra patch is a 20 cm 2, once-weekly adhesive that contains 6.0 mg norelgestromin and 0.6 mg ethinyl estradiol and delivers 200 μg/day norelgestromin and 35 μg/day ethinyl estradiol.
Combined hormonal contraception (CHC), or combined birth control, is a form of hormonal contraception which combines both an estrogen and a progestogen in varying formulations. [ 1 ] [ 2 ] The different types available include the pill , the patch and the vaginal ring , which are all widely available, [ 3 ] and an injection , which is available ...
An estrogen patch, or oestrogen patch, is a transdermal delivery system for estrogens such as estradiol and ethinylestradiol which can be used in menopausal hormone therapy, feminizing hormone therapy for transgender women, hormonal birth control, and other uses. [1] Transdermal preparations of estrogen are metabolized differently than oral ...
Available transdermal estradiol patches in the United States [1] [2] [a] Brand name Dose (µg/day) DOA (d) Size [b] [c] (cm 2) Levels (pg/mL) Intro. Alora [3] [4] 25, 50, 75, 100 3–4 9, 18, 27, 36 43–144 1996 Climara [d] [5] [6] 25, 37.5, 50, 60, 75, 100 7 6.5, 9.375, 12.5, 15, 18.75, 25 17–174 1994 Climara Pro [e] [7] [8] E2 (45)
Transdermal patch: Estradiol: 25 μg/day b: 50 μg/day b: 100 μg/day b: Transdermal gel: Estradiol: 0.5 mg/day: 1–1.5 mg/day: 2–3 mg/day Vaginal: Estradiol: 25 μg/day – – Estriol: 30 μg/day: 0.5 mg 2x/week: 0.5 mg/day IM Tooltip Intramuscular or SC injection: Estradiol valerate – – 4 mg 1x/4 weeks Estradiol cypionate: 1 mg 1x/3 ...