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Medical Forum / Diseases and Disorders / Breast Cancer / January 2006

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After Tamoxifen?

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Mitzi S - 14 Jan 2006 17:53 GMT
What should I expect from my body when I quit taking the Tamoxifen?  I
will not be going on anything else.  Going cold turkey after five years
of daily reassurance is kinda scary!

          ~laugh a little~        
                      Mitzi
Michele - 15 Jan 2006 06:46 GMT
Hi Mitzi,
I started Tamoxifen yesterday......for the next five years. I'm kind of
worried about the changes or side effects that I will encounter while on it.
What can you tell me? By the way, what do you do if you forget to take it
one day? Do you take two the next or just skip it?
I guess its scary when you do take it and scary when you don't.......
I'm sure we'll be ok, relax,
Michele

> What should I expect from my body when I quit taking the Tamoxifen?  I
> will not be going on anything else.  Going cold turkey after five years
> of daily reassurance is kinda scary!
>
>            ~laugh a little~
>                        Mitzi
Tim Jackson - 15 Jan 2006 12:03 GMT
> Hi Mitzi,
> I started Tamoxifen yesterday......for the next five years. I'm kind of
[quoted text clipped - 11 lines]
>>           ~laugh a little~
>>                       Mitzi

Michelle, one pill either way isn't going to make much difference at
all, so don't worry.

Ideally it is best to keep the average number of pills right over the
longer term, so it is better to take two, better still to space them out
over the next day.  The best answer probably depends on any side-effects
management regime you may have.

The objective is to maintain a certain minimum level of the drug in your
body to block the action of estrogen.  The level rises fairly quickly,
to peak five hours after you take a pill, and then slowly washes out of
your system over a week or two.  So at any given time you are being
treated by the pills you have taken over the last week or so.  There are
no particular effects known of exceeding the recommended level for a
short time.

Mitzi, I don't know of any withdrawal effects from Tamoxifen, but
whatever side effects you may have should cease over a few weeks.  At
the end of five years the reassurance is largely just placebo effect,
the effectiveness of Tamoxifen against cancer fades over time, that is
why it is withdrawn after five years.  Of course the risk of recurrence
from your bout with bc also fades over time, so you could view it that
you are now back to "normal", but for the scar.

Tim Jackson
Michele - 15 Jan 2006 18:45 GMT
Thank you Tim for such a complete answer, I have a better understanding
about how it works now. I hope I don't find out what the side effects
are......

All my best wishes and hopes and prayers for a healthy New Year to all the
people on this forum. Your presence, questions and answers answer many of my
questions and fears before I even formulate them.

Michele

> Michelle, one pill either way isn't going to make much difference at
> all, so don't worry.
[quoted text clipped - 21 lines]
>
> Tim Jackson
Sue - 15 Jan 2006 21:59 GMT
Michele - I'm just starting my 4th year of tamoxifen, and never
experienced the side effects I'd read about regarding the drug.  To be
honest, I was scared to start it, and strongly considered not taking
it.  In the end I decided to try it, knowing I could/would stop if I
experienced side effects that I didn't want to deal with.

I did stop taking the drug (cold turkey) for a few months last year,
and also experienced nothing at all as a result.  I had gained a little
weight and I stopped the drug to see if perhaps that was the cause (no
such luck).  I asked my oncologist what would happen at the end of my 5
years, and his answer was "nothing - you're done".

Good luck to you - try not to worry!
Sue
Michele - 15 Jan 2006 22:23 GMT
Thanks Sue,

I think that is what I'd like to believe will happen.....nothing.
Its good to know that it does happen because like you , reading about the
side effects almost made me refuse to take it, but like you I decided it
would be silly not to go ahead and take it as it comes, being able to make
the decision to stop it if I did not want to deal with it in the future.
be well.

Michele

> Michele - I'm just starting my 4th year of tamoxifen, and never
> experienced the side effects I'd read about regarding the drug.  To be
[quoted text clipped - 10 lines]
> Good luck to you - try not to worry!
> Sue
Mitzi S - 16 Jan 2006 03:51 GMT
Thru the years I have had a few side effects but they were not the worst
that could happen.  I found that if I was stressed out about something
the hot flashes got worse and to begin with I was a little moodier than
usual.  (Or at least I thought so.  My family may have said that I was
always moody!)  After about a year I started being really inconsistent
with periods and after two years they stopped all together. I am only 44
but I took a FSH test not long ago and it said I was post menopausal.
Now after one month of no Tamoxifen I have had a ten day period.  I was
really hoping for someone to tell me that was to be expected without me
having to tell all my personal stuff but now whether you wanted to know
or not you got it!

          ~laugh a little~        
                      Mitzi
Tim Jackson - 16 Jan 2006 07:48 GMT
> Thru the years I have had a few side effects but they were not the worst
> that could happen.  I found that if I was stressed out about something
[quoted text clipped - 10 lines]
>            ~laugh a little~        
>                        Mitzi

I don't think that is a common effect of stopping Tamoxifen, but it is a
common occurrence in peri-menopausal women anyway. I dare say the ending
of Tamoxifen had an effect on the timing, but I think we are mostly
talking about coincidence here.

Tim
Anthony - 16 Jan 2006 11:53 GMT
> Hi Mitzi,
> I started Tamoxifen yesterday......for the next five years.

Recently her onc switched my wife from Tamoxifen to Femara which he
said has been shown to give better results so you might want to check
up on that.
A. P. Thorsen - 16 Jan 2006 20:42 GMT
>>Hi Mitzi,
>>I started Tamoxifen yesterday......for the next five years.
>
> Recently her onc switched my wife from Tamoxifen to Femara which he
> said has been shown to give better results so you might want to check
> up on that.

Don't know Michele's details, but as I understand it, Tamoxifen is still
normally used in women who are pre-menopausal (because most estrogen is
still being produced by the ovaries, which are not affected by aromatase
inhibitors like Femara, Arimidex, etc.).

The aromatase inhibitors are used in post-menopausal women.  Most of our
post-menopausal estrogen is produced outside the ovaries via
aromatization, so the aromatase inhibitors are effective.

Some doctors are now using an aromatase inhibitor after the 5 years of
Tamoxifen.  My oncologist says that I'll probably remain on Arimidex (an
aromatase inhibitor) indefinitely.  (I took Tamoxifen for about 2.5
years, quitting it early for reasons that had nothing to do with side
effects or perceived effectivenss of the drugs.)

Ann T.
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Eva - 17 Jan 2006 03:52 GMT
> ....My oncologist says that I'll probably remain on Arimidex (an
> aromatase inhibitor) indefinitely.
---------------
Oh, dear God, is that what they're recommending now?  I have made up my mind
to endure this joint pain for five years and am looking forward to finishing
with it!

Eva
marilyn@utrillo.ac - 17 Jan 2006 14:29 GMT
>> ....My oncologist says that I'll probably remain on Arimidex (an
>> aromatase inhibitor) indefinitely.
[quoted text clipped - 4 lines]
>
>Eva

I've been taking Arimidex for three years with no problems at all
until this week, when my family doctor's nurse called me to say my
annual DEXA test is showing borderline osteoporosis.  My mom has
osteoporosis, but she got it much later in life so I'm guessing it is
from the Arimidex.  So I'm suddenly taking Fosamax, starting next
Sunday morning, trying to go to the gym more regularly and using hand
weights at home.

I was assuming that the Arimidex would be for two more years.  I won't
be talking to my oncologist for six months, or my family doctor for a
year.  I did call the pharmacy and they agree with the Fosamax and
didn't think there was any reason to stop taking Arimidex.

Marilyn, procrastinating about getting to the gym
A. P. Thorsen - 20 Jan 2006 22:05 GMT
> I've been taking Arimidex for three years with no problems at all
> until this week, when my family doctor's nurse called me to say my
[quoted text clipped - 3 lines]
> Sunday morning, trying to go to the gym more regularly and using hand
> weights at home.

Hang in there -- this *can* work.

One of the women on my breast cancer survivors' rowing team (who is now
72 y/o, but started rowing a year or two ago) had osteoporosis when she
started rowing.  Between the drugs (not sure whether she takes Fosamax
or one of the others) and exercise, she's reversed the osteoporosis to
the point where, at the majority of the measurement sites, it's now
considered osteopenia.  And who knows how much further progress she can
make?

Exercise can become a <good> addiction, if you can find something you
really enjoy doing, and it has great payoffs.

I tried taking a bunch of different fitness classes and finally found
rowing as my main love.  But my desire to get fitter for rowing has led
to actual enthusiasm for other active pursuits -- something I never
would've predicted, if you'd asked me about it pre-BC.  One of my
friends, after watching my team in one of our first races, said "Ann a
jock - who would've thought it?" <grin>

This (exercise, and especially rowing) has been THE factor in getting me
feeling healthy & strong again after treatment.    So far (though I
haven't been tested again real recently) the Arimidex hasn't pushed me
out of the normal range, as far as bone density. <fingers crossed>

Ann T.
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