The pharmacology of estradiol, an estrogen medication and naturally occurring steroid hormone, concerns its pharmacodynamics, pharmacokinetics, and various routes of administration.
Vivelle-Dot, an estradiol patch.
Two boxes of estradiol patches with different brands sold in Australia.
A bottle of estradiol gel sold in Australia with a prescription
Subcutaneous administration
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Subcutaneous administration is the insertion of medications beneath the skin either by injection or infusion.
Pharmacokinetics of estradiol
…Estradiol can be taken by mouth, held under the tongue, as a gel or patch that is applied to the skin, in through the vagina, by injection into muscle or fat, or through the use of an implant that is placed into fat, among other routes. Estradiol can be taken by a variety of different routes of administration…
An insulin pump with a subcutaneous infusion site
Subcutaneous injection with insulin syringe at 90 degrees.