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Half Securon® SR 120 mg Tablets


(verapamil hydrochloride)
Read all of this leaflet carefully before you start taking this medicine
- Keep this leaflet as you may need to read it again
- This leaflet provides a summary of the information currently available
about Securon SR and Half Securon SR
- For further information or advice ask your doctor or pharmacist
- This medicine is for you only and should never be given to anyone else,
even if they appear to have the same symptoms as you
- Tell your doctor or pharmacist if you experience any side effects
This medicine is available using the above name but will be referred to as
Half Securon SR throughout this leaflet.
Also available in other strength as Securon SR 240 mg Tablets.
Leaflet contents:
1. What is Securon SR and Half Securon SR and what is it used for?
2. What should you know before taking your tablets?
3. How should you take your tablets?
4. Possible side effects.
5. How should you store your tablets?
6. Further information.
Securon SR and Half Securon SR tablets belong to a group of medicines
called calcium channel blockers. Calcium channel blockers change the
amount of calcium getting into the muscle cells in your heart and blood
vessels. This can change the strength and speed with which your heart
beats. It also opens up the blood vessels so blood can be pumped around
the body more easily. This helps more oxygen to get to your heart muscle
and can lower your blood pressure.
Securon SR and Half Securon SR tablets are used to treat hypertension
(high blood pressure) and to prevent angina (chest pain) attacks. The
tablets may also be prescribed following a heart attack, to prevent another
attack occurring.
The active ingredient in Securon SR and Half Securon SR tablets is
verapamil hydrochloride.
If the answer to any of the following questions is ‘YES’ please tell your
doctor or pharmacist BEFORE taking any tablets:
- Are you sensitive (allergic) to verapamil or any of the ingredients in the
tablets? (See Section 6).
- Are you pregnant or planning to become pregnant, or are you breast
- Do you have very low blood pressure?
- Do you have or have you ever suffered from heart problems such as heart
- Do you have an abnormally slow or irregular heart beat?
- Have you recently had a heart attack?
- Do you have liver or kidney problems?
- Do you have or have you ever suffered from heart problems such as heart
failure or the heart condition called Wolff-Parkinson-White syndrome?
- Do you have a condition where the nerve to muscle transmission is
affected e.g. myasthenia gravis, Lambert-Eaton syndrome, advanced
Duchenne muscular dystrophy?
- Are you being treated with ivabradine (for heart conditions)?
Taking other medicines.
Please tell your doctor or pharmacist if you are taking any medicines
with or without a prescription or have recently taken any of the
following medicines:
- beta-blockers used to treat high blood pressure and heart conditions
(these include atenolol, propranolol and metoprolol)
- alpha blockers used to treat high blood pressure and heart conditions
(these include prazosin and terazosin)
- diuretics (also called “water pills”)
- medicines known as “statins” such as atorvastatin, lovastatin, simvastatin
used to lower cholesterol levels
- any other medicine for high blood pressure or an abnormal heart beat
(arrhythmia) such as quinidine, flecainide, digoxin and digitoxin
- dabigatran (medicine to prevent the formation of blood clots)
- medicines containing ivabradine for the treatment of certain heart
- medicines used to treat depression (including the herbal product St John’s
Wort), anxiety or psychosis. These may include imipramine, buspirone
and lithium.

- medicines known as immunosuppressants such as ciclosporin, sirolimus,
everolimus and tacrolimus. These are used to prevent organ transplant
- glibenclamide, used to treat certain types of diabetes
- aspirin, a non-steroidal anti-inflammatory painkiller (NSAID) used to
relieve pain and reduce fever
- almotriptan, used to treat migraine
- midazolam, used as a sedative or anaesthetic
- theophylline, used to treat asthma
- doxorubicin, an anti-cancer medicine
- cimetidine, used to treat indigestion or stomach ulcers
- carbamazepine, phenytoin or phenobarbital (phenobarbitone). These
medicines are used as anti-convulsants.
- rifampicin, used to treat tuberculosis and other types of infection
- ritonavir, used to treat HIV
- erythromycin, clarithromycin and telithromycin, used to treat certain types
of infection
- colchicine or sulfinpyrazone, used to treat gout.
Tell your surgeon or dentist that you are taking Securon SR or Half Securon
SR if surgery is planned as it may affect the anaesthetic used.
Driving and operating machines
Do NOT drive, operate machinery or do anything that requires you to be
alert, until you know how the tablets affect you.
Securon SR and Half Securon SR can make some people feel dizzy,
especially when they first start to take the tablets.
Other important information
Do NOT drink grapefruit juice whilst taking your tablets as it can affect the
absorption of this medicine. This does not occur with other fruit juices such
as orange, apple or tomato juice.
Drinking alcohol
Securon SR and Half Securon SR will increase the time your body takes to
get rid of alcohol. This means that you may not have to drink as much for
your blood alcohol levels to be above the legal limit to drive. It will also take
you longer to sober up.
Taking Securon SR and Half Securon SR with food and drink
Your tablets can be taken with a glass of water to help you swallow them. It
does not matter if you have eaten, so they can be taken with or without food.
Pregnancy and breast feeding
Please discuss with your doctor if you are pregnant, planning to become
pregnant or are breast feeding.
ALWAYS take your tablets exactly as your doctor has told you. If you are
not sure refer to the label on the carton or check with your doctor or
TAKE YOUR TABLETS with a glass of water. You should swallow the
tablets without chewing or crushing them. It does not matter if you have not
The number of tablets that you will need to take will depend on what you are
being treated for:
Hypertension (high blood pressure)
The usual dose is one Securon SR 240 mg tablet a day. If you have not
taken Securon SR 240 mg before, your doctor may prescribe a lower dose
such as a Half Securon SR 120 mg tablet each day. The maximum dose to
treat high blood pressure is 480 mg each day. This is usually taken as one
Securon 240 mg tablet in the morning and one in the evening, leaving a gap
of about 12 hours between each dose.
Angina (chest pain)
The usual starting dose for angina is one Securon SR 240 mg tablet taken
twice a day. You should take one tablet in the morning and one in the
evening, with a gap of about 12 hours in between them. Your doctor may
prescribe a lower dose according to your symptoms.
Following a heart attack
The usual dose following a heart attack is 360 mg each day. This may be
taken as one Securon SR 240 mg tablet in the morning and a Half Securon
SR 120 mg tablet in the evening or as one Half Securon SR 120 mg tablet
taken three times a day. The doctor will usually wait at least a week after
your heart attack before prescribing these tablets.
Securon SR and Half Securon SR are NOT recommended for children
under 12 years of age.

If you take more tablets than prescribed (an overdose) you should
contact a doctor or go to the nearest hospital casualty department
IMMEDIATELY taking your tablets with you.
If you forget to take your tablets take them as soon as you remember,
unless it is almost time for your next dose. If it is, do not take the missed
dose at all. Never double up on a dose to make up for the one you have

Manufactured by AbbVie Deutschland GmbH & Co. KG, Knollstrasse 50,
Ludwigshafen, D-67061, Germany. Procured from within the EU by Product
Licence holder Star Pharmaceuticals Ltd, 5 Sandridge Close, Harrow,
HA1 1XD. Repackaged by Servipharm Ltd.

Half Securon SR 120mg Tablets - PL 20636/2705

Leaflet revision and issue date (Ref) 26.08.16[5]
If you stop taking your tablets your condition may get worse. It is
important that you keep taking these tablets until your doctor tells you to
stop. Do NOT stop just because you feel better.
Other things to remember about Securon SR and Half Securon SR
- Securon SR tablets may be broken in half if your doctor advises you to do
so (e.g. if a lower dose has been prescribed).
- The tablets should NOT be crushed or chewed, as this will affect the
modified-release formulation of the product.
As with all medicines, Securon SR and Half Securon SR can cause side
effects, although not everyone will suffer from them. If you experience any
other unusual symptoms whilst taking your tablets, tell your doctor or
Tell your doctor IMMEDIATELY if you experience any of the following
side effects:
- Yellowing of the skin or eyes, a fever or tenderness around the middle.
These are signs that your liver may not be functioning as well as usual
- Palpitations, chest pains for the first time or chest pains becoming more
frequent, swollen ankles, hot and painful hands or feet
- Swelling of the limbs
- Unexpected wheezing, difficulty breathing, swelling of the mouth, lips or
tongue or severe skin rash
The most common side effect is constipation. Other side effects include
abnormal heart beat, flushing of the face or neck, headaches, feeling or
being sick, abdominal pain or discomfort, dizziness, vertigo, tinnitus (ringing
or buzzing in the ears), tiredness, tremor, movement disorders, muscle
weakness, aches and pains in the joints and/or muscles, skin rash or
itching, a tingling or prickling feeling on the skin, numbness and hair loss.
Impotence may occur rarely.
Other side effects might occur if Securon SR and Half Securon SR are used
for a long time. Tell your doctor if you develop swollen gums which start to
spread over your teeth, or if your breasts swell (males) or start to produce
milk (males and females). These effects are rare and are resolved upon
stopping taking the tablets.
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: By reporting side effects, you can help
provide more information on the safety of this medicine.
Keep out of the sight and reach of children.
Do not store above 25°C. Store the original package.
Do not take your tablets after the expiry date shown on the carton.
If your doctor decides to stop the treatment, return any left over to your
pharmacist. Only keep the tablets if your doctor tells you to.
Medicines should not be disposed of via wastewater or household waste.
Ask you pharmacist how to dispose of medicine no longer required. These
measures will help to protect the environment.
If your tablets become discoloured or show any other signs of deterioration,
consult your doctor or pharmacist who will tell you what to do.
The active ingredient in Half Securon SR tablets is verapamil hydrochloride.
Each tablet contains 120 mg of verapamil hydrochloride in a modified
release formulation.
The inactive ingredients are microcrystalline cellulose, sodium alginate,
povidone, magnesium stearate, purified water, hypromellose, macrogol 400,
macrogol 6000, talc, titanium dioxide (E171) and Montan Glycol Wax.
What Half Securon SR Tablets look like:
Half Securon SR are round, white tablets marked 'KNOLL' on one side and
'120 SR' on the other.
Half Securon SR tablets are available in blister packs of 28 and 98 tablets
calendar blister strips.

Half Securon SR is a trademark of Abbott GmbH & Co. KG.

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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.