
Efexor (Venlafaxine)
The name of your medicine is Efexor.
The active ingredient in these tablets is venlafaxine hydrochloride.
The peach coloured tablets contain either 37.5mg or 75mg venlafaxine
and are marked with "37.5" or "75" accordingly.
Other ingredients in these tablets are: lactose, microcrystalline
cellulose, sodium starch glycollate, magnesium stearate, yellow
and brown iron oxide (E172).
The 37.5 mg and 75 mg tablets come in calendar packs of 56 tablets.
Efexor is one of a group of medicines called antidepressants which
are used to relieve the symptoms of depressive illness and any associated
anxiety.
You have been given Efexor tablets because you are suffering from
the symptoms of depressive illness.
Efexor is a treatment which can relieve these symptoms and help
you get better.
BEFORE YOU TAKE YOUR MEDICINE
YOU SHOULD NOT TAKE EFEXOR IF:
You are pregnant.
You are breast feeding.
You are sensitive to any of the ingredients in Efexor tablets. You
are younger than 18 years. You are taking or have recently taken
(within the last two weeks) another antidepressant drug known as
a monoamine oxidase inhibitor (MAOI).
YOU SHOULD TELL YOUR DOCTOR OR PHARMACIST IF:
You have liver or kidney disease. Your dose of Efexor may be lowered.
You have a history of epilepsy or heart disease. Your doctor will
supervise you carefully while you are taking Efexor.
You are taking Cimetidine (a stomach drug), since if you are elderly
or have liver problems, this may affect the way Efexor works.
You are, or have recently taken any other antidepressant drugs,
particularly those known as monoamine oxidase inhibitors (MAOIs).
You suffer from, or have a history of, mania.
You have eye problems or suffer from, or have a history of, narrow
angle glaucoma.
You are having electroconvulsive (ECT) therapy for depression.
You are taking warfarin (blood thinner), haloperidol or clozapine
(for schizophrenia).
You are taking, or have recently taken, any other medicines.
ATTENTION
When you take Efexor, make sure your judgement or co-ordination
is not affected before you drive or use machinery.
If you are a woman of childbearing age, you should use contraception
whilst taking Efexor.
The usual starting dose is one 37.5mg tablet twice a day. You should
take one tablet in the morning and one tablet in the evening. However,
your doctor may decide a different dose, up to a maximum of 375mg
a day, is better for you.
The label will tell you how many tablets to take and how often.
If it does not, or if you are not sure, ask your doctor or pharmacist.
You should swallow your tablets whole with a drink of water when
you eat. Do not crush or chew them.
The 37.5 mg tablets and 75 mg tablets come in special "calendar"
packs which help you remember to take your tablets when you should.
The following instructions will help you:
Remove a card.
Go to the correct day of the week.
Take the tablet marked in the morning.
Your next tablet marked should be taken in the evening.
Continue taking a tablet every morning and evening.
When you have finished a card, move on to the next one.
It will take several days or more before you feel your medicine
is having an effect. Don't worry this is quite normal.
You may need to take Efexor for several months. If so, don't worry,
this is not uncommon.
If you accidentally take too many tablets you must seek immediate
medical attention.
Do not worry if you forget to take a tablet. Do not take extra
tablets to make up for any you have missed, just take your next
tablet as usual.
Do not stop taking your tablets without the advice of your doctor
even if you feel better.
If your doctor thinks you no longer need Efexor, he will ask you
to reduce your dose before stopping treatment altogether.
If Efexor is stopped suddenly or the dose reduced too quickly, some
patients may experience symptoms such as tiredness, dizziness, headache,
sleeplessness, dry mouth, feeling or being sick, diarrhoea, nervousness,
confusion, tingling and sweating.
These symptoms are generally non-serious and disappear within a
few days.
Your doctor will advise you on how you should gradually discontinue
Efexor treatment and if you experience any of these or other symptoms
which are troublesome, return to your doctor for further advice.
Efexor may cause unwanted effects in some people.
If you do have unwanted effects, they will usually not be serious
and not last for long. However you should tell your doctor without
delay if you have:
- an allergic reaction such as skin rash, swollen face or tongue,
or shortness of breath or difficulty breathing.
- a high temperature with rigid muscles, confusion and sweating
or if you experience jerky muscle movements which you can't control.
- mania or hypomania (feeling 'high' or very over excited).
If any of the following symptoms are severe or become troublesome
you should tell your doctor:
- unusual bruising or bleeding.
- rapid or irregular heart beat, flushing.
- change in appetite or bowel habits, constipation, diarrhoea, indigestion,
feeling or being sick.
- unusual tiredness or weakness, headache, abdominal discomfort,
chills, fever.
- weight loss or gain.
- sore muscles or joints, muscle spasm.
- stiff muscles, rarely clumsiness or loss of balance, tremor, strange
feeling on the skin such as "pins and needles" or burning.
- dizziness, dry mouth, difficulty sleeping or abnormal dreams,
drowsiness, nervousness, agitation, confusion, hallucinations.
- difficulty in urinating, or feeling the need to go to the toilet
more often than usua.
- abnormal ejaculation/orgasm, reduced sex drive, impotence, menstrual
disturbances in women, rarely abnormal breast milk production.
- sweating, rash.
- blurred vision, tinnitus (ringing in the ears).
You should also tell your doctor if you have any other unwanted
effect not mentioned above.
Some patients have occasionally felt dizzy or unsteady on standing
due to a fall in blood pressure.
Efexor sometimes causes unwanted effects which you may not be aware
of, such as increases in blood pressure or abnormal heart beat;
slight changes in blood levels of liver enzymes, sodium or rarely
cholesterol. More rarely Efexor may reduce the number of platelets
in your blood.
Tell your doctor or pharmacist you are taking Efexor before taking
any other drug, if you become pregnant, or you enter hospital for
treatment.
You should not use this medicine after the expiry date shown on
the packaging.
Keep your Efexor tablets at room temperature (at or below 30°C)
in a dry place.
Keep this medicine in a safe place where children cannot reach or
see it. Your medicine could harm them.
If your doctor decides to stop treatment, return any left over tablets
to your pharmacist. Only keep them if your doctor tells you to.
REMEMBER this medicine is only for you.
Only a doctor can prescribe it for you.
Never give it to others. It may harm them even if their symptoms
are the same as yours.
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