A member asked:

Which results in a higher blood concentration of estrogen, a daily pill that contains 20 g or a nuvaring that releases 15 g daily?

A doctor has provided 1 answer

Daily pill...: According to the NuvaRing package insert, the blood estrogen concentration in studies was around 20 pg/ml and remained fairly constant after insertion until removed. In the package insert for a 20ug daily pill, the peak blood concentration of estrogen was around 100 pg/ml a few hours after ingestion but the level rapidly fell to 10pg/ml by 24 hours when time for the next dose. Best wishes!

Answered 4/17/2016

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