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DIETHYLSTILBESTROL 1MG FILM-COATED TABLETS

Active substance(s): DIETHYLSTILBESTROL

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PACKAGE LEAFLET: INFORMATION FOR THE USER

DIETHYLSTILBESTROL
1 MG FILM-COATED TABLETS
Read all of this leaflet carefully before you start
taking this medicine because it contains important
information for you.
• Keep this leaflet. You may need to read it again.
• 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.
What is in this leaflet
1. What Diethylstilbestrol is and what it is used for
2. What you need to know before you take Diethylstilbestrol
3. How to take Diethylstilbestrol
4. Possible side effects
5. How to store Diethylstilbestrol
6. Contents of the pack and other information

1. WHAT DIETHYLSTILBESTROL IS AND WHAT IT IS
USED FOR
Diethylstilbestrol 1 mg film-coated tablets, referred to as
Diethylstilbestrol in this leaflet, is a synthetic non-steroidal
oestrogen hormone used specifically for men with prostate
cancer who have not responded to other drug or surgery
forms of castration and for whom alternative treatments are
not suitable.

2. WHAT YOU NEED TO KNOW BEFORE YOU TAKE
DIETHYLSTILBESTROL
Do NOT take Diethylstilbestrol if you:
• are allergic to diethylstilbestrol or any of the other
ingredients of this medicine (listed in section 6)
• are currently suffering from liver disease
• have moderate or severe high blood pressure
• have any heart problems
• have a history of blood clots
• have any disorder of the blood vessels in the brain
• have hyperlipoproteinaemia (an excess of lipoproteins in
the blood)
• untreated polycythaemia (increased production of red
blood cells), or sickle cell anaemia (altered shape of red
blood cells) which causes anaemia
• have porphyria (a deficiency of specific enzymes within
the body, causing an increase of substances called
porphyrins).
Warnings and precautions
Talk to your doctor before taking this medicine if you:
• suffer from kidney problems
• have ever had any liver problems or have suffered from
jaundice (yellowing of the skin or whites of the eyes)
• suffer from mild high blood pressure
• have diabetes
• suffer from epilepsy
• suffer from migraine
• suffer from depression
• wear contact lenses
• suffer from gallstones
• suffer from thyroid problems.
If you have a thyroid function test while you are taking this
medicine, make sure you have told the doctor that you are
taking Diethylstilbestrol, as this may affect the results.
Children
Diethylstilbestrol should NOT be used in children (see section 3).
Other medicines and Diethylstilbestrol
Tell your doctor or pharmacist if you are taking, have recently
taken or might take any other medicines, including medicines
obtained without a prescription.

In particular, talk to your doctor if you are taking any
of the following:
• diuretics or water tablets
• medicines used for high blood pressure.
Pregnancy
Diethylstilbestrol should NOT be used by women of
childbearing age.
Driving and using machines
Diethylstilbestrol is not known to affect your ability to drive or
operate machinery.
Diethylstilbestrol contains lactose and E110 (sunset
yellow)
• Patients who are intolerant to lactose should note that
Diethylstilbestrol tablets contain a small amount of lactose.
If your doctor has told you that you have an intolerance
to some sugars, contact your doctor before taking this
medicine.
• Your medicine contains the colouring agent (sunset yellow)
which may cause allergic reactions.

3. HOW TO TAKE DIETHYLSTILBESTROL
Always take this medicine exactly as your doctor or pharmacist
has told you. Check with your doctor or pharmacist if you are
not sure.
The tablets should be swallowed preferably with a drink of
water.
In some patients, the doctor may consider prescribing a
blood thinning agent such as low dose aspirin to prevent
clots forming. Before taking diethylstilbestrol, your doctor
may offer you breast bud radiation to minismise some of the
side effects associated with diethylstilbestrol
How much to take
The recommended dose is:
Adults, including the elderly
Prostate cancer - One to three 1 mg tablets per day.
Use in children
Diethylstilbestrol should NOT be used in children.
If you take more Diethylstilbestrol than you should
If you (or someone else) take too many tablets all together, or
if you think a child has swallowed any of the tablets, contact
your nearest hospital casualty department or your doctor
immediately.
The most common symptoms of overdose are feeling or
being sick (nausea or vomiting). Please take this leaflet, any
remaining tablets, and the container with you to the hospital
or doctor so that they know which tablets were consumed.
If you forget to take Diethylstilbestrol
If you forget to take a tablet, take one as soon as you
remember, unless it is nearly time to take the next one. DO
NOT take a double dose to make up for a forgotten dose.
If you stop taking Diethylstilbestrol
You should continue to take these tablets for as long as your
doctor tells you to. DO NOT stop taking your medicine without
talking to your doctor first even if you feel better.
If you have any further questions about the use of this
medicine, ask your doctor or pharmacist.

4. POSSIBLE SIDE EFFECTS
Like all medicines, Diethylstilbestrol can cause side effects,
although not everybody gets them.
Stop taking the tablets and tell your doctor immediately
or go to the casualty department at your nearest hospital if
the following happens:
• an allergic reaction (swelling of the lips, face or neck
leading to severe difficulty in breathing; skin rash or hives)

blood clots (causing redness, swelling and pain in the
affected area).
These are very serious but rare side effects. You may need
urgent medical attention or hospitalisation.
Tell your doctor immediately if the following
happens:
• gallstones and associated jaundice (causing yellowing of
the skin or whites of the eyes).
The following side effects have been reported:
• aches and pains
• darkening/discoloration of the skin
• fluid retention
• headache
• increased incidence of migraine
• high blood pressure
• feeling sick (nausea) and being sick (vomiting)
• skin rashes
• weight gain
• sodium retention causing symptoms such as increased
thirst, dry mouth, loss of skin elasticity, irritability, muscle
twitching
• above normal glucose levels in the blood, which may
increase the risk of diabetes
• fluctuating moods (both elation and depression)
• tender inflamed skin marked by red nodules
• discomfort of the eyes in patients wearing contact lenses
• breast discomfort, breast tenderness, breast enlargement
and secretion of milk-like fluid from the breasts in both
men and women
• in women, withdrawal bleeding, excessive production
of cervical mucous, thickening of the lining of the uterus
and uterine tumours. With prolonged use there may be
an increased risk of malignant tumours in the lining of the
uterus.
• in women, high calcium levels in the blood causing nausea,
vomiting, loss of appetite, weakness, headache, bone pain,
sleepiness or apathy
• in men, increased size of male breasts, reduction in size of
testes, inability to get or maintain an erection.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or
nurse. This includes any possible 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 medicine.

5. HOW TO STORE DIETHYLSTILBESTROL
Keep this medicine out of the sight and reach of
children.
Do not use this medicine after the expiry date which is stated
on the carton and blister. The expiry date refers to the last
day of that month.
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 OTHER
INFORMATION
What Diethylstilbestrol tablet contains
 The active substance is diethylstilbestrol. Each 1 mg tablet
contains 1mg of diethylstilbestrol.
 The other ingredients are lactose monohydrate, magnesium
stearate (E572), maize starch, ethanol, opadry II pink
85F24252 consists of: polyvinyl alcohol, titanium dioxide
(E171) polyethylene glycol/macrogol, talc, eryhtrosine
alumnium lake (E127), sunset yellow FCF aluminium lake
(E110) and indigo carmine aluminium lake (E132).
What Diethylstilbestrol tablets looks like and
contents of the pack
Diethylstilbestrol 1 mg film-coated tablets are pink, biconvex,
film-coated tablets, plain on one side and inscribed D1on the
reverse for oral administration. The tablets are available in
blister packs of 10, 28, 30, 56, 60 and 100 tablets. Not all pack
sizes may be marketed.
Marketing Authorisation Holder and Manufacturer
Kinedexe UK Limited, Unit 15 Moorcroft, Harlington Road,
Uxbridge, UB8 3HD, United Kingdom.
This leaflet was last revised in 04/2017

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