Important Information about
the safety of HRT
As well
as benefits, HRT has some risks that need to be
considered when you are deciding whether to take HRT
or whether you want to continuing taking HRT. These
risks are:
-
Effects on you heart or circulation - heart
disease, stroke and blood clots
-
Risks associated with developing cancers -
breast cancer, ovarian cancer and endometrial
cancer
Effects
in your Heart or Circulation
Heart Disease
HRT is not recommended for women
who have heart disease, or have had heart disease
recently. If you have ever had heart disease,
talk to your doctor or see if you should be taking
HRT.
HRT will not prevent heart
disease
Studies
with one type of HRT product (containing conjugated
estrogen and the progestogen MPA) have shown that
women may be slightly more likely to get heart
disease during the first year of taking the
medication. For other types of HRT products, the
risk is likely to be similar, although this is not
yet certain.
If you
get:
-
A pain in your chest that spreads to you arm and
neck
-
See a doctor as soon as
possible and do not
take any more Indivina until your doctor
says you can. This pain could be a sign of heart
disease.
Stroke
Recent
research suggests that HRT slightly increases the
risk of having a stroke. Other things that can
increase the risk of stroke include:
-
getting older
-
high blood pressure
-
smoking
-
drinking too much alcohol
-
an irregular heartbeat
If you
are worried about any of these things or if you have
had a stroke in the past, talk to your doctor to see
if you should take Indivina.
Compare
Looking
at women in their 50's who
are not taking HRT - on
average, over a 5 year period, 3
in 1000 would be expected to have a stroke.
For
women in their 50's who are
taking HRT, the figure would be
4 in 1000.
Looking
at women in their 60's who
are not taking HRT - an average, over a 5 year
period, 11 in 1000 would
be expected to have a stoke.
For
women in their 60's who are
taking HRT the figure would be
15 in 1000.
If you
get:
-
unexplained migraine-type headaches with or
without disturbed vision
-
See a doctor as soon as
possible and do not
take any more Indivina until your doctor
says you can. These headaches may be an early
warning sign of a stroke.
Blood Clots
HRT may
increase the risk of blood clots
in the veins (called deep
vein thrombosis, or DVT)
especially during the first year of taking it.
These
blood clots are not always serious,
but if one travels to the lungs
it can cause chest pain, breathlessness, collapse or
even death. This condition is called
pulmonary embolism or
PE.
DVT and
PE are examples of a condition called
venous thromboembolism or
VTE. You are more likely
to get a blood clot:
-
if you are seriously overweight
-
if you have had a blood clot before
-
if any of your close family have had blood clots
-
if you have had one or more miscarriages
-
if you have any blood clotting problem that
needs treatment with a medicine such as warfarin
-
if you are off your feet for a long time as a
result of major surgery, illness or injury
-
if you have a rare condition called SLE
If any of these things apply
to you, talk to your doctor to see if you
should take Indivina
Compare
Looking
at women in their 50's who
are not taking HRT - on
average, over a 5 year period, 3
in 1000 would be expected to get a blood
clot.
For
women in their 50's who are
taking HRT, the figure would be
7 in 1000.
Looking
at women in their 60's who
are not taking HRT - an
average, over a 5 year period, 8
in 1000 would be expected to get a blood
clot.
For
women in their 60's who are
taking HRT the figure would be
17 in 1000.
If you
get:
-
painful swelling in your leg
-
sudden chest pain
-
difficulty breathing
-
See your doctor as soon as
possible and do not
take any more Indivina until your doctor
says you can. These may be signs of a blood
clot.
If you
are going to have surgery, make sure
your doctor knows about it. You may need to stop
taking Indivina about 4 to 6 weeks before the
operation to reduce the risk of a blood clot. Your
doctor will tell you when you can start taking
Indivina again.
Risks
associate with developing cancer
Breast Cancer
Women who have breast cancer, or
have had breast cancer in the past should not take
HRT.
Taking
HRT slightly increases the risk of breast cancer; so
does having a later menopause. The risk for a
post-menopausal woman taking estrogen-only HRT for 5
years is about the same as for a woman of the same
age who's still having periods over that time and
not taking HRT. The risk for a woman who is taking
estrogen plus progestogen HRT is higher than for
estrogen-only HRT (but estrogen plus progestogen HRT
is beneficial for the endometrium see "Endometrial
cancer" below).
For all
kinds of HRT, the extra risk of breast cancer goes
up the longer you take HRT, but returns to normal
within about 5 years after stopping.
Your
risk of breast cancer is also higher:
-
if you have a close relative (mother, sister or
grandmother) who has had breast cancer.
-
if you are seriously overweight
Compare
Looking
at women aged 50 who are not
taking HRT - on average,
32 in 1000 will be diagnosed with breast
cancer by the time they reach the age of 65
For
women who start taking estrogen-only
HRT at aged 50 and take it for
5 years, the figure will
be between 33 and 34 in 1000 (ie
an extra 1-2 cases).
If they
take estrogen-only HRT for 10
years, the figure will be
37 in 1000 (ie an extra 5 cases)
For
women who start taking estrogen
plus progestogen HRT at age 50 and take it
for 5 years the figure
will be 38 in 1000 (ie an extra 6
cases)
If they
take estrogen plus progestogen HRT for
10 years, the figure will
be 51 in 1000 (ie an extra 19
cases)
If you
notice any changes in your breast,
such as:
-
dimpling of the skin
-
changes in the nipple
-
any lumps you can see or feel
-
Make an appointment to see
your doctor as soon as possible
Endometrial cancer (cancer of
the lining of the womb)
Taking estrogen-only HRT products
for a long time can increase the risk of cancer of
the lining of the womb (the endometrium).
Taking a progestogen as
well as the estrogen helps to lower the extra risk.
If you still have a womb
your doctor may prescribe a progestogen as well as
estrogen. If so, these may be prescribed separately
or as a combined HRT product like Indivina.
If you have had your womb removed
(a hysterectomy) your doctor will discuss this with
you whether you can safely take estrogen without
progestogen. Indivina is not recommended for these
women.
If you have had your womb removed
because of endometriosis any endometrium left
in your body may be at risk. So your doctor may
prescribe HRT that includes a progestogen as well as
an estrogen.
Your
product, Indivina contains a progestogen
Compare
Looking
at women who still have a uterus and who are
not taking HRT - on
average 5 in 1000 will be
diagnosed with endometrial cancer between the ages
of 50 and 65 years
For
women who take estrogen-only HRT
the number will be 2 to 12 times
higher, depending on the dose and how long
you take it
The
addition of progestogen to estrogen only HRT
substantially reduces the risk of endometrial cancer
If you
get breakthrough bleeding or spotting
it is usually nothing to worry about, especially
during the first few months of taking HRT.
But if the bleeding or spotting:
-
carries on for more than the first few months
-
starts after you have been on HRT for a while
-
carries on even after you have stopped taking
HRT
-
Make an appointment to see
your doctor. It could be a sign that you
endometrium has become thicker.
Ovarian Cancer
Ovarian
cancer (cancer of the ovaries) is very rare but it
is serious. It can be difficult to diagnose because
there are no obvious signs of the disease.
Some
studies have indicated that taking estrogen only HRT
for more than 5 years may increase the risk of
ovarian cancer. It is not yet known whether other
kinds of HRT products increase the risk in the same
way.