I guess you're done with this topic, BB, but I just wanted to let you know that there actually HAVE been long term studies performed on prolonged high dose usage of birth control hormones.
I posted earlier about the research I had to do on birth control options for an account I was working on last year. When we were discussing the hormone dosages in regular birth control versus MAP, it reminded me that birth control used to contain a lot more progestin.
I was going to look up some stuff in medical journals, but when I worked on that account I was with a different agency and we don't have access to certain medical journals with our LexisNexis subscription at my current place of employment.
But I found a webpage that gives some suitable info. This is from the FDA's official website:
http://www.fda.gov/bbs/topics/CONSUMER/CON00027.html"The first oral contraceptives contained 100 micrograms (mcg) to 175 mcg of
estrogen and as much as
10 milligrams (mg) of progestin--significantly higher levels of both hormones than in today's pill."
That's actually more than the .75 mg of progestin in the morning after pill.A few interesting quotes:
"By 1969, ongoing research had revealed that the risks of blood clots, heart
attack, and stroke were directly related to the amount of estrogen in the
various versions of the pill."
"By the mid '70s, most women who used oral contraceptives were taking pills
that contained 50 mcg or less of estrogen--a considerable decrease over the
100 to 150 mcg of the '60s."
"One of the major problems of the studies to date, says Corfman, is that
all
the data reflect the effects of the higher-dose pills"
"In addition to its contraceptive effectiveness, the pill has proven to have
significant health benefits. Studies show that the incidence of ovarian and
endometrial cancers, benign cysts of the ovaries and breasts, and pelvic
inflammatory disease decreases with pill use."