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HRT Equivalencies
 

One of the most common questions where hormones are concerned is what dose of one form is equivalent to another.  For example, if you've been on .625 Premarin and want to switch to an estrogen patch, what would give you roughly the same amount of estrogen?

Here's a quick rundown to make matters easier.  Keep in mind, though, that not only are these rough equivalencies, but also that your body may react differently to the individual forms of HRT.  In other words, the same dosage in different types of HRT might have more or less of an effect on your body.

ESTROGEN

Type Daily Dosage
Conjugated estrogen (Premarin, Cenestin) 0.625 mg
Estradiol (Estrace) 1.0 mg
Transdermal estradiol (patches) .05 mg (50 mcg)
Estropipate (Ogen, Ortho-Est) 1.25 mg
Esterified estrogen (Menest, Estratab) 0.625
Tri-est/Bi-est 2.5 mg
Ethinyl estradiol .01 to .015 mg (10 to 15 mcgs depending upon the source)
(note:  Estinyl estradiol -- as in birth control pills -- is generally said to be at least 3 to 5 times more potent than the other forms of estrogen used in HRT.)

 

PROGESTERONE/PROGESTIN

Type

Cyclical Dosage

Continuous Dosage
Medroxyprogesterone acetate (Provera)

5 mg

2.5 mg
Micronized progesterone (Prometrium) 200 mg 100 mg
Norethindron acetate (Aygestin) 5 mg 2.5 mg
Norethindrone (Micronor) .7 mg .35 mg
Progesterone gel (Prochieve 4%) every other day for 12 days (delivers 45 mg of progesterone per application) 2 times weekly

 

 

 

 

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Important Note: The information contained on EarlyMenopause.com is not intended to replace the care prescribed by your physician.   Always consult your physician before beginning a new health regimen or altering any course of treatment set up by your doctor.

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Any questions? Contact  Kathryn Petras or the Early Menopause message board moderators.

Site last updated on: 3/15/05

EarlyMenopause.com does NOT endorse any one form of treatment. We're all different, and what works for one of us might not work for another. Nor is the site tied commercially to ANY drug or supplement – unlike other sites which, while claiming no sponsorship, do get money for "click-throughs" on ads or orders generated from the site. This is one reason why, other than listing the brand names for HRT, no brand names are (implicitly or explicitly) recommended.

Along these lines, EarlyMenopause.com does not accept advertising of any sort, nor is funded by any company or by a grant (unrestricted or otherwise) from any corporation, but is privately funded by the site owner.

All information on the site has been excerpted or adapted from The Premature Menopause Book by writer and women's health advocate Kathryn Petras, or has been written specifically for Early Menopause.com by Kathryn Petras.   Any reprinting or reproduction for anything other than personal use  is expressly prohibited without permission. 

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