--- Erik Reuter <[EMAIL PROTECTED]> wrote:
> Have you heard of that new contraceptive patch? I
> saw a commercial for
> it, but I can't remember the name. I haven't seen
> any studies about effectiveness or side effects.

Alora.
A Medline search gave 3 hits.  One has no abstract.
Another is actually about the patch adhesive itself,
not the efficacy of the medicated patch.
The Dec 2001 article abstract:

Transdermal contraception.
Creasy GW, Abrams LS, Fisher AC.
The R.W. Johnson Pharmaceutical Research Institute,
Raritan, New Jersey 08869, USA.

"This review summarizes the clinical studies involving
the once-weekly Ortho Evra/Evra contraceptive patch.
The patch delivers norelgestromin (NGMN), 150 microg,
and ethinyl estradiol (EE), 20 microg, daily to the
systemic circulation. The contraceptive patch provided
ovulation suppression and cycle control similar to
that of oral norgestimate 250 microg/EE 35 microg,
significantly decreased mean maximum follicular
diameter following a 3-day intentional delayed dosing
phase when compared with oral levonorgestrel (LNG)
50/75/125 microg/EE 30/40/30 micorg and oral LNG 100
microg/EE 20 microg, and was as effective as oral LNG
50/75/125 microg/EE 30/40/30 microg and oral
desogestrel 150 microg/EE 20 microg in altering
cervical mucus composition (i.e., creating a scanty,
viscous consistency). The contraceptive patch provided
efficacy, cycle control, and safety comparable to that
seen with oral LNG 50/75/125 microg/EE 30/40/30
microg, but women were able to correctly follow the
weekly dosing regimen significantly more often than
the daily oral contraceptive dosing regimen. Less than
2% of patches were replaced because of complete
detachment in these trials. The patch was not
associated with phototoxicity or photoallergy. The
contraceptive patch, the only noninvasive, weekly
birth control method that a woman can self-administer,
will be a valuable addition to current contraceptive
options."

In other words, it is comparable to 3rd generation
OCPs, with patch detachment roughly cancelled out by
ease of administration/lack of missed pills. 
Potential side effects are ~ the same as OCPs -
bloating, nausea, increased risk of blood clots in
smokers, etc.  Theoretically, side effects should be
less, because of the lack of a "first pass" through
the liver (being transdermal, all of the dose does not
get passed through the liver as any oral drug does,
and so it should be less toxic).

Debbi

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