SANDRENA 1MG GEL
Active substance(s): ESTRADIOL / ESTRADIOL HEMIHYDRATE
Relief of symptoms occurring after
During the menopause, the amount of the
oestrogen produced by a woman’s body
drops. This can cause symptoms such as hot
face, neck and chest (“hot flushes”). Sandrena
alleviates these symptoms after menopause.
You will only be prescribed Sandrena if your
symptoms seriously hinder your daily life.
You must talk to your doctor if you do not
feel better or if you feel worse.
2. What you need to know
before you use Sandrena
Medical history and regular check-ups
The use of HRT carries risks which need to be
considered when deciding whether to start
taking it, or whether to carry on taking it.
The experience in treating women with a
premature menopause (due to ovarian failure
or surgery) is limited. If you have a premature
menopause the risks of using HRT may be
different. Please talk to your doctor.
Before you start (or restart) HRT, your
doctor will ask about your own and your
family’s medical history. Your doctor may
decide to perform a physical examination.
This may include an examination of your
breasts and/or an internal examination, if
Once you have started on Sandrena you
should see your doctor for regular check-ups
(at least once a year). At these check-ups,
discuss with your doctor the benefits and
risks of continuing with Sandrena.
Regularly check your breasts for any
changes (see ‘Breast cancer’ below). Go for
regular breast screening, as recommended by
Do not use Sandrena:
if any of the following applies to you. If you
are not sure about any of the points below,
talk to your doctor before using Sandrena.
Do not use Sandrena:
- if you have or have ever had breast
cancer, or if you are suspected of having it
- if you have cancer which is sensitive to
oestrogens, such as cancer of the womb
lining (endometrium), or if you are suspected of having it
- if you have any unexplained vaginal
- if you have excessive thickening of the
womb lining (endometrial hyperplasia)
that is not being treated
- if you have or have ever had a blood clot
in a vein (thrombosis), such as in the legs
(deep venous thrombosis) or the lungs
- if you have a blood clotting disorder
(such as protein C, protein S, or antithrombin deficiency)
- if you have or recently have had a disease
caused by blood clots in the arteries, such
as a heart attack, stroke or angina
- if you have or have ever had a liver disease
and your liver function tests have not
returned to normal
- if you have a rare blood problem called
“porphyria” which is passed down in
- if you are allergic to estradiol or any of
the other ingredients of this medicine
Sandrena (listed in section 6).
If any of the above conditions appear for the
first time while using Sandrena, stop using it
at once and consult your doctor immediately.
Warnings and precautions
Talk to your doctor or pharmacist before
using Sandrena. Tell your doctor if you have
ever had any of the following problems,
before you start the treatment, as these may
return or become worse during treatment
with Sandrena. If so, you should see your
doctor more often for check-ups:
- fibroids inside your womb
- growth of womb lining outside your womb
(endometriosis) or a history of excessive
growth of the womb lining (endometrial
- increased risk of developing blood clots
(see “Blood clots in a vein (thrombosis)”)
- increased risk of getting a oestrogensensitive cancer (such as having a mother,
sister or grandmother who has had breast
- high blood pressure
- a liver disorder, such as a benign liver
- migraine or severe headaches
- a disease of the immune system that affects
many organs of the body (systemic lupus
- a disease affecting the eardrum and hearing
- a very high level of fat in your blood (triglycerides)
- fluid retention due to cardiac or kidney
- hereditary angioedema.
Stop using Sandrena and see a doctor
If you notice any of the following when taking
- any of the conditions mentioned in the “Do
not use Sandrena” section
- yellowing of your skin or the whites of
your eyes (jaundice). These may be signs of
a liver disease
- a large rise in your blood pressure (symptoms may be headache, tiredness, dizziness)
- migraine-like headaches which happen for
the first time
- if you become pregnant
- if you notice signs of a blood clot, such as:
- painful swelling and redness of the legs
- sudden chest pain
- difficulty in breathing
For more information, see ‘Blood clots in a
Note: Sandrena is not a contraceptive. If it is
less than 12 months since your last menstrual
period or you are under 50 years old, you
may still need to use additional contraception
to prevent pregnancy. Speak to your doctor
HRT and cancer
Excessive thickening of the lining of the
womb (endometrial hyperplasia) and
cancer of the lining of the womb
Taking oestrogen-only HRT will increase the
risk of excessive thickening of the lining of the
womb (endometrial hyperplasia) and cancer
of the womb lining (endometrial cancer).
Taking a progestagen in addition to oestrogen
for at least 12 days of each 28 day cycle
protects you from this extra risk. So your
doctor will prescribe a progestagen separately
if you still have your womb. If you have had
your womb removed (a hysterectomy),
discuss with your doctor whether you can
safely take this product without a progestagen.
In women who still have a womb and who are
not taking HRT, on average, 5 in 1,000 will be
diagnosed with endometrial cancer between
the ages of 50 and 65.
Additionally, you are advised to join
mammography screening programs when
offered to you. For mammogram screening, it
is important that you inform the nurse/
healthcare professional who is actually taking
the x-ray that you use HRT, as this medication
may increase the density of your breasts
which may affect the outcome of the
mammogram. Where the density of the
breast is increased, mammography may not
detect all lumps.
Ovarian cancer is rare - much rarer than
breast cancer. The use of oestrogen-only or
combined oestrogen-progestagen HRT has
been associated with a slightly increased risk
of ovarian cancer.
The risk of ovarian cancer varies with age. For
example, women aged 50 to 54 who are not
taking HRT, about 2 women in 2,000 will be
diagnosed with ovarian cancer over a 5‑year
period. For women who have been taking
HRT for 5 years, there will be about 3 cases
per 2,000 users (i.e. about 1 extra case).
Effects of HRT on heart and circulation
Blood clots in a vein (thrombosis)
The risk of blood clots in the veins is
about 1.3 to 3 times higher in HRT users than
in non-users, especially during the first year of
Blood clots can be serious, and if one travels
to the lungs, it can cause chest pain,
breathlessness, fainting or even death.
You are more likely to get a blood clot in
your veins as you get older and if any of the
following applies to you. Inform your doctor
if any of these situations applies to you:
• you are unable to walk for a long time
because of major surgery, injury or illness
(see also section 3, If you need to have
• you are seriously overweight (BMI >
• you have or have had any blood clotting
problem that needs long-term treatment
with a medicine used to prevent blood
• if any of your close relatives has ever had a
blood clot in the leg, lung or another organ
• you have systemic lupus erythematosus (SLE)
• you have cancer.
For signs of a blood clot, see “Stop using
Sandrena and see a doctor immediately”.
Looking at women in their 50s who are not
taking HRT, on average, over a 5‑year period,
4 to 7 in 1,000 would be expected to get a
blood clot in a vein.
For women in their 50s who have been taking
oestrogen-progestagen HRT for over 5 years,
there will be 9 to 12 cases in 1,000 users (i.e.
an extra 5 cases).
For women in their 50s who have had their
womb removed and have been taking
oestrogen-only HRT for over 5 years, there
will be 5 to 8 cases in 1,000 users (i.e. 1 extra
Heart disease (heart attack)
There is no evidence that HRT will prevent a
Women over the age of 60 years who use
oestrogen-progestagen HRT are slightly more
likely to develop heart disease than those not
taking any HRT.
For women who have had their womb
removed and are taking oestrogen-only
therapy there is no increased risk of developing a heart disease.
The risk of getting a stroke is about 1.5-times
higher in HRT users than in non-users. The
number of extra cases of stroke due to use of
HRT will increase with age.
Looking at women in their 50s who are not
taking HRT, on average, 8 in 1,000 would be
expected to have a stroke over a 5‑year
period. For women in their 50s who are taking HRT, there will be 11 cases in 1,000 users,
over 5 years (i.e. an extra 3 cases).
- HRT will not prevent memory loss. There
is some evidence of a higher risk of memory
loss in women who start using HRT after
the age of 65. Speak to your doctor for
- Women with a tendency to discoloration
of the skin (chloasma) should minimise
exposure to the sun or ultraviolet radiation
whilst using Sandrena.
Other medicines and Sandrena
Tell your doctor or pharmacist if you are
taking, have recently taken or might take any
other medicines, including medicines obtained
without a prescription, herbal medicines or
other natural products.
Some medicines may interfere with the effect
of Sandrena. This might lead to irregular
bleeding. This applies to the following medicines:
- Medicines for epilepsy (such as phenobarbital, phenytoin and carbamazepine)
- Medicines for tuberculosis (such as
- Medicines for HIV infection (such as nevirapine, efavirenz, ritonavir and nelfinavir)
- Herbal remedies containing St. John’s wort
If you need a blood test, tell your doctor or
the laboratory staff that you are using
Sandrena, because this medicine can affect
the results of some tests.
Pregnancy, breast-feeding and fertility
Sandrena is for use in postmenopausal
women only. If you become pregnant, stop
using Sandrena and contact your doctor.
Driving and using machines
No studies on the effects of Sandrena on the
ability to drive and use machines have been
Sandrena contains propylene glycol
Sandrena contains propylene glycol, which may
cause skin irritation.
3. How to use Sandrena
Always use this medicine exactly as your
doctor or pharmacist has told you. Check
with your doctor or pharmacist if you are not
When to start using Sandrena
You can start using Sandrena straight away if:
- You have never used HRT before
- You are changing over from a period-free
Wait for your period to end if:
- You are changing over from another type
of HRT where you have a period.
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Sandrena is used for:
Sandrena is a Hormone Replacement Therapy
(HRT). It contains the female hormone
Women aged 50 to 79 who are not taking
HRT, on average, 9 to 17 in 1,000 will be
diagnosed with breast cancer over a 5-year
period. For women aged 50 to 79 who are
taking oestrogen-progestagen HRT over
5 years, there will be 13 to 23 cases in
1,000 users (i.e. an extra 4 to 6 cases).
• Regularly check your breasts. See
your doctor if you notice any changes
- dimpling of the skin
- changes in the nipple
- any lumps you can see or feel
1. What Sandrena is and what it
is used for
What is in this leaflet
1. What Sandrena is and what it is used for
2. What you need to know before you use
3. How to use Sandrena
4. Possible side effects
5. How to store Sandrena
6. Contents of the pack and other information
Evidence suggests that taking combined
oestrogen-progestagen and possibly also
oestrogen-only HRT increases the risk of
breast cancer.The extra risk depends on how
long you take HRT. The additional risk
becomes clear within a few years. However, it
returns to normal within a few years (at most
5) after stopping treatment.
For women who have had their womb
removed and who are using oestrogen-only
HRT for 5 years, little or no increase in breast
cancer risk is shown.
140 x 720
140 x 180
Read all of this leaflet carefully before
you start using this medicine because
it contains important information for
- Keep this leaflet.You may need to read it
- If you have any further questions, ask
your doctor or pharmacist.
- This medicine has been prescribed for
you only. Do not pass it on to others. It
may harm them, even if their signs of
illness are the same as yours.
- If you get any side effects, talk to your
doctor or pharmacist. This includes any
possible side effects not listed in this
leaflet. See section 4.
If your doctor has prescribed you progestagen
tablets in addition to Sandrena, you will
usually have a bleed once a month (so-called
withdrawal bleed). But, if you have unexpected
bleeding or drops of blood (spotting) besides
your monthly bleeding, which:
• carries on for more than the first 6 months
• starts after you have been taking Sandrena
more than 6 months
• carries on after you have stopped using
see your doctor as soon as possible.
For women aged 50 to 65 who still have a
womb and who take oestrogen-only HRT,
between 10 and 60 women in 1,000 will be
diagnosed with endometrial cancer (i.e.
between 5 and 55 extra cases), depending on
the dose and for how long it is taken.
If you have not had your womb removed,
your doctor will normally also prescribe
another medicine containing the
hormone progestagen. This is normally a
tablet taken for 12 to 14 days in each monthly
cycle. After each course of progestagen you
will usually have a withdrawal bleed, like a
How much to use
Sandrena comes in sachets of 0.5 mg estradiol
in 0.5 g of gel, or in sachets of 1 mg estradiol
in 1g of gel.
Each pack of Sandrena 0.5 mg gel contains
only 0.5 g sachets.
Each pack of Sandrena 1 mg gel contains
only 1 g sachets.
Use the amount of Sandrena gel that your
doctor has prescribed. Your doctor will aim
to prescribe the lowest dose to treat your
symptom for as short as necessary. Speak to
your doctor if you think this dose is too
strong or not strong enough.
- The recommended dose is between 0.5 mg
and 1.5 mg of estradiol a day.
- Use the following number of 0.5 g or 1 g
sachets depending on the dose, and the
pack size prescribed by your doctor:
For a 0.5 mg daily dose: Use one 0.5 g sachet.
For a 1 mg daily dose: There are two options.
Use one 1 g sachet or use two 0.5 g sachets.
For a 1.5 mg daily dose: There are two options.
Use three 0.5 g sachets or use one 0.5 g
sachet with one 1 g sachet.
If you are also taking progestagen tablets, take
them as your doctor has told you. You will
normally have a withdrawal bleed after each
course of progestagen.
How to apply the gel
Sandrena should be rubbed gently on dry and
clean skin. It should not be swallowed.
Where to apply the gel
- Do not apply the gel to your breasts, face
or on irritated skin.
- Apply the gel to your lower body or thighs.
- Apply the gel to a different side of your
body each day.
Follow these instructions:
1. Apply the gel once a day to the skin on
your lower body or thighs.
2. Spread the gel over an area 1–2 times the
size of your hand.
3. Allow the gel to dry for a few minutes.
4. Wash your hands after applying the gel.
Avoid contact of the gel with your eyes.
The gel may irritate your eyes.
5. Do not wash the area where you have
applied the gel for at least one hour.
If you need to have surgery
If you are going to have surgery, tell the
surgeon that you are using Sandrena.You may
need to stop using Sandrena about 4 to
6 weeks before the operation to reduce the
risk of a blood clot (see section 2, Blood clots
in a vein).Ask your doctor when you can start
using Sandrena again.
If you use more Sandrena gel than you
If you use more gel than you should, talk to
your doctor or pharmacist.
You may feel bloated, anxious or irritable, or
your breasts may feel tender. Nausea, vomiting
and withdrawal bleeding may also occur in
Overdosage is unlikely with transdermal
application.Treatment is symptomatic.The gel
should be washed. The symptoms disappear
when the treatment is stopped or when the
dose is reduced.
If you swallow Sandrena
If you swallow Sandrena there is no need to
worry. However, you should talk to your
If you forget to use Sandrena
- Apply the missed dose when you remember,
unless you are more than 12 hours late.
- If you are more than 12 hours late just skip
the missed dose.
- Missed doses may cause some bleeding
between your periods. This is called
If you stop using Sandrena
Keep using this medicine as prescribed by
your doctor. Keep using Sandrena, even if you
seem to be better. If you stop too early or
too suddenly your problem may return.
If you have any further questions on the use
of this medicine, ask your doctor or
4. Possible side effects
Like all medicines, this medicine can cause
side effects, although not everybody gets
Stop using the gel and see your doctor
straight away, if you notice any of the
following serious side effects:
- your blood pressure rises
- your skin or the whites of your eyes go
- you suddenly have migraine-type headaches
(see section 2)
- you have signs of a blood clot (see section 2)
- you get any of the problems listed in section 2.
The following diseases are reported more
often in women using HRT compared to
women not using HRT:
- breast cancer
- abnormal growth or cancer of the lining of
the womb (endometrial hyperplasia or
- ovarian cancer
- blood clots in the veins of the legs or lungs
- heart disease
- probable memory loss if HRT is started
over the age of 65.
For more information about these side
effects, see section 2.
During the first few months of treatment,
breakthrough bleeding, spotting and breast
tenderness or enlargement can occur. These
are usually temporary and normally disappear
after continued treatment.
Other side effects
Common (affects up to 1 in 10 people):
- itching of the skin, rash, pain, increased
sweating, swollen feet and lower legs
- breasts become tender or painful
- increase or decrease in your weight
- headache, dizziness
- tummy pains, feeling sick or being sick,
- bleeding or spotting, menstrual disorder
- depression, nervousness, lethargy
- hot flushes.
Uncommon (affects up to 1 in 100 people):
- changes to sex drive and mood, anxiety,
sleeplessness, apathy, emotional instability,
impaired concentration,euphoria, agitation
- migraine, delusion, trembling
- visual impairment, dry eye
- hypertension, superficial phlebitis, purpura
- shortness of breath, rhinitis
- benign breast or endometrial tumour
- increased appetite, high level of cholesterol
in the blood
- increased heart rate
- constipation, digestive disturbance, diarrhoea, rectal disorder
- acne, alopecia, dry skin, nail disorder, skin
nodule, excessive growth of hair, urticaria
(a raised, itchy rash that appears on the
skin), painful reddish skin nodules (erythema nodosum)
- joint disorders, muscle cramps
- increased urinary frequency/urgency, loss
of bladder control, urinary tract infection,
urine discoloration, haematuria
- tender or swollen breast, abnormal growth
of the lining of the womb, uterine disorder
- tiredness, abnormal laboratory test, weakness, fever, flu syndrome, general feeling of
- allergic (hypersensitivity) reaction.
Rare (affects up to 1 in 1,000 people):
- venous thromboembolism
- alterations in liver function and biliary flow
- contact lense intolerance
- menstrual pain
- pre-menstrual like syndrome.
Adverse events reported post marketing with
frequency not known (cannot be estimated
from the available data):
- uterine fibroids
- hereditary angioedema
- cerebral circulatory disorder
- liver disease causing yellowing of the skin
- contact rash, eczema
If you have any of these side effects tell your
doctor. The doctor may decide to stop your
treatment for a while.
HRT will not prevent memory loss. There is
some evidence of a higher risk of memory
loss in women who start using HRT after the
age of 65. Speak to your doctor for advice.
The following side effects have been reported
with other HRTs:
- gall bladder disease
- probable dementia over the age of 65
- various skin disorders:
- discolouration of the skin especially of
the face or neck known as “pregnancy
- rash with target-shaped reddening or
sores (erythema multiforme)
- purpura due to loss of integrity or
function of the vessels (vascular purpura)
Reporting of side effects
If you get any side effects, talk to your doctor
or pharmacist. This includes any side effects
not listed in this leaflet. You can also report
side effects directly via the Yellow Card
Scheme at: www.mhra.gov.uk/yellowcard.
By reporting side effects you can help provide
more information on the safety of this
5. How to store Sandrena
Keep this medicine out of the sight and reach
Do not use this medicine after the expiry
date which is stated on the carton and sachet
after “use by”.
Store the gel at room temperature (below
Do not throw away any medicines via
wastewater or household waste. Ask your
pharmacist how to throw away medicines
you no longer use. These measures will help
protect the environment.
6. Contents of the pack and
What Sandrena 0.5 mg gel and
Sandrena 1 mg gel contain
- The active substance is estradiol. There is
0.5 mg (milligrams) or 1.0 mg of estradiol
in each sachet.
- The other ingredients are Carbopol 974P,
trolamine, propylene glycol, alcohol and
What Sandrena 0.5 mg gel and
Sandrena 1 mg gel look like and the
contents of the packs
Sandrena gel is a smooth alcohol-based gel.
Sandrena 0.5 mg gel comes in packs of 28 or
Sandrena 1 mg gel comes in packs of 28 or
Not all pack sizes may be marketed.
Marketing Authorisation Holder
The manufacturer is:
Orion Corporation Orion Pharma
This medicinal product is authorised in
the Member States of the EEA under
the following names:
Italy, the United Kingdom
This leaflet was last revised in July 2016.
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Source: Medicines and Healthcare Products Regulatory Agency
Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.