Preservative Free Dorzolamide hydrochloride/Timolol maleate
Consumer Medicine Information
What is in this leaflet
This leaflet answers some common questions about COSOPT-Preservative Free. It does
not contain all the available information.
It does not take the place of talking to your doctor or pharmacist.
All medicines have risks and benefits. Your doctor has weighed the risks of you using
COSOPT-Preservative Free against the benefits they expect it will have for you.
If you have any concerns about taking this medicine, ask your doctor or pharmacist.
Keep this leaflet with the medicine.
You may need to read it again.
What COSOPT-Preservative Free is used for
COSOPT-Preservative Free is used to lower raised pressure in the eye and to treat
glaucoma for patients who might be sensitive to preservative-containing formulations
or for whom the use of a preservative free formulation is otherwise advisable. Glaucoma
is a condition in which the pressure of fluid in the eye may be high. However, some
people with glaucoma may have normal eye pressure. Also, some people with raised
eye pressure may not have glaucoma.
Glaucoma is usually caused by a build up of the fluid which flows through the eye.
This build up occurs because the fluid drains out of your eye more slowly than it
is being pumped in. Since new fluid continues to enter the eye, joining the fluid
already there, the pressure continues to rise. This raised pressure may damage the
back of the eye resulting in gradual loss of sight. Damage can progress so slowly
that the person is not aware of this gradual loss of sight. Sometimes even normal
eye pressure is associated with damage to the back of the eye.
There are usually no symptoms of glaucoma. The only way of knowing that you have
glaucoma is to have your eye pressure, optic nerve and visual field checked by an
eye specialist or optometrist. If glaucoma is not treated it can lead to serious
problems. You may have no symptoms but eventually glaucoma can lead to total blindness.
In fact, untreated glaucoma is one of the most common causes of blindness.
Although COSOPT-Preservative Free helps control your glaucoma it does not cure it.
For more information about glaucoma, contact Glaucoma Australia (PO Box 420, Crows
Nest 1585, telephone 1800 500 880).
COSOPT-Preservative Free contains two active ingredients, dorzolamide hydrochloride
and timolol maleate. Both of these active ingredients lower pressure in the eye by
reducing the production of fluid, but they do this in different ways.
Dorzolamide hydrochloride belongs to a family of medicines called carbonic anhydrase
inhibitors. Timolol maleate belongs to a family of medicines called beta-blockers.
COSOPT-Preservative Free is not addictive.
Before you use COSOPT-Preservative Free
When you must not use it
Do not use COSOPT-Preservative Free if you have an allergy to COSOPT-Preservative
Free or any of the ingredients listed at the end of this leaflet.
Do not use COSOPT-Preservative Free if:
you have now or have had in the past certain serious breathing problem such as asthma,
chronic obstructive lung disease (emphysema), or other breathing problems.
you have certain heart conditions, such as a slow heart rate, an irregular heart beat,
or heart failure.
Do not use COSOPT-Preservative Free if you are breast-feeding or intend to breast-feed.
Your baby may absorb this medicine from breast milk and therefore there is a possibility
of harm to the baby.
COSOPT-Preservative Free has not been studied in people wearing contact lenses.
Do not use COSOPT-Preservative Free if:
the unit seal is broken
the packaging shows signs of tampering
the expiry date on the pack has passed.
If you use this medicine after the expiry date has passed, it may not work.
If you are not sure whether you should start using COSOPT-Preservative Free, talk
to your doctor.
There is limited experience with COSOPT-Preservative Free in children.
Before you start to use it
Tell your doctor if you are pregnant or intend to become pregnant
Your doctor will discuss the possible risks and benefits of using COSOPT-Preservative
Free during pregnancy and a decision can be made if you should or should not use it.
Tell your doctor if you have any medical conditions, especially the following:
heart problems (such as coronary heart disease, heart failure or low blood pressure)
heart rate disturbances (such as slow or irregular heartbeats)
poor blood circulation problems (such as Raynaud's syndrome)
lung or breathing problems (such as asthma or chronic obstructive lung disease)
diabetes or other blood sugar problems
Tell your doctor if you have an allergy to sulfonamide medicines
One of the active ingredients of COSOPT-Preservative Free, dorzolamide hydrochloride,
is a sulfonamide-related compound. Therefore, if you are allergic to sulfonamide medicines
you may be allergic to COSOPT-Preservative Free. Check with your doctor or pharmacist
if you are not sure whether you are allergic to sulfonamides.
Tell your doctor if you are already using another beta-blocker eye drop
It is not recommended to use two beta-blocker eye drops at the same time.
Tell your doctor if you have a history of allergic problems, including eczema, hives
or hay fever.
Tell your doctor if you have had an allergy to any other medicines or any other substances,
such as foods, preservatives or dyes.
If you have not told your doctor about any of the above, tell them before you use
Tell your doctor before you have an operation that you are using COSOPT-Preservative
Free, as it may change the effects of some medicines during anaesthesia.
Taking other medicines
Tell your doctor if you are taking any other medicines, including any that you get
without a prescription from your pharmacy, supermarket or health food shop.
Some medicines and COSOPT-Preservative Free may interfere with each other. These
medicines for high blood pressure or heart conditions, including a group of medicines
quinidine, a medicine used to treat irregular heart beats
tablets used to treat glaucoma
large amounts of aspirin or salicylates
medicine to treat depression
These medicines may be affected by COSOPT-Preservative Free, or may affect how well
it works. You may need different amounts of your medicines, or you may need to take
Your doctor or pharmacist has more information on medicines to be careful with or
avoid while using COSOPT-Preservative Free.
How to use COSOPT-Preservative Free
How much to use
Your doctor will tell you how many drops you need to use each day.
Use COSOPT-Preservative Free only when prescribed by your doctor.
The usual dose for adults is one drop of COSOPT-Preservative Free twice a day, in
either one or both eyes.
Follow all directions given to you by your doctor carefully.
They may differ from the information contained in this leaflet.
Use COSOPT-Preservative Free every day, at about the same time each day, unless your
doctor tells you otherwise.
Using your eye drops at the same time each day will have the best effect on your eye
pressure. It will also help you remember when to use the eye drops.
After using COSOPT-Preservative Free, wait at least 10 minutes before putting any
other eye drops in your eye(s).
How to use it
You may find it easier to put drops in your eye while you are sitting or lying down.
The solution from one individual unit dose pipette of COSOPT-Preservative Free is
to be used immediately after opening. Since sterility cannot be maintained after
the individual unit dose pipette is opened, any remaining contents must be discarded
immediately after administration.
If you are wearing soft contact lenses, remove them before putting the drops in your
Wash your hands well with soap and water.
Open the foil pouch which contains 15 individual unit dose pipettes. There are three
strips of 5 pipettes each in the pouch.
Break off one pipette from the strip and twist open the top of the pipette.
Hold the pipette upside down in one hand, with your thumb or index finger over the
"finger push" area.
Using your other hand, gently pull down your lower eyelid to form a pouch.
Tilt your head back and look up.
Put the tip of the pipette close to your lower eyelid. Do not let it touch your eye.
Release one drop into the pouch formed between your eye and eyelid by gently squeezing
Close your eye and keep it closed. Do not blink or rub your eye.
While your eye is still closed, place your index finger against the inside corner
of your eye and press against your nose for about two minutes. This will help to
stop the medicine from draining through the tear duct to the nose and throat, from
where it can be absorbed into other parts of your body. Ask your doctor for more
specific instructions on this technique.
If you are using COSOPT-Preservative Free in both eyes, repeat this procedure for
your other eye.
Discard the pipette, even if there is some solution remaining.
Store the remaining unopened pipettes in the foil pouch; the remaining pipettes must
be used within 15 days.
Wash your hands again with soap and water to remove any residue.
You may feel a slight burning sensation in the eye after using the eye drops.
If this persists, or is very uncomfortable, contact your doctor or pharmacist.
How long to use it
COSOPT-Preservative Free helps control your condition but does not cure it. Therefore
COSOPT-Preservative Free must be used every day. Continue using COSOPT-Preservative
Free for as long as your doctor prescribes.
If you forget to use it
If it is almost time for your next dose, skip the dose you missed and have your next
dose when you are meant to. Otherwise, use the drops as soon as you remember, and
then go back to using them as you would normally.
If you are not sure whether to skip the dose, talk to your doctor or pharmacist.
Do not use double the amount to make up for the dose that you missed.
If you have trouble remembering to use your eye drops, ask your pharmacist for some
If you use too much (overdose)
If you think that you or anyone else may have swallowed any or all of the contents
of a pipette of COSOPT-Preservative Free, or used too many drops, immediately telephone
your doctor or Poisons Information Centre (telephone 13 11 26) for advice, or go to
accident or emergency at your nearest hospital. Do this even if there are no signs
of discomfort or poisoning.
If COSOPT-Preservative Free is accidentally swallowed, or if you use too many drops,
you may feel light-headed or dizzy, you may faint, have a very slow pulse rate, or
have wheezing or difficulty breathing.
While you are using COSOPT-Preservative Free
Things you must do
Have your eye pressure checked when your eye specialist says, to make sure COSOPT-Preservative
Free is working.
If you develop an eye infection, receive an eye injury, or have eye surgery tell your
Your doctor may advise you to stop your treatment with COSOPT-Preservative Free.
If you become pregnant while using COSOPT-Preservative Free, tell your doctor.
After opening a unit of COSOPT-Preservative Free, immediately use it in one or both
eyes then discard the pipette, even if there is some solution remaining.
COSOPT-Preservative Free does not contain any preservatives. Therefore, if you keep
the remaining solution for your next dose, there is a risk that it may be contaminated
with germs and cause an eye infection.
If you are about to be started on any new medicine, tell your doctor and pharmacist
that you are using COSOPT-Preservative Free.
Things you must not do
Do not give COSOPT-Preservative Free to anyone else, even if they have the same condition
Do not stop using COSOPT-Preservative Free without first talking to your doctor.
If you stop using your eye drops, your eye pressures may rise again and damage to
your eye may occur.
Things to be careful of
Be careful driving or operating machinery until you know how COSOPT-Preservative Free
COSOPT-Preservative Free generally does not cause any problems with your ability to
drive a car or operate machinery. However, COSOPT-Preservative Free may cause blurred
vision or dizziness in some people. Make sure you know how you react to COSOPT-Preservative
Free or that your vision is clear before driving a car or operating machinery.
Tell your doctor or pharmacist as soon as possible if you do not feel well while you
are using COSOPT-Preservative Free.
COSOPT-Preservative Free helps most people with high eye pressure and glaucoma, but
it may have unwanted side effects in a few people. All medicines can have side effects.
Sometimes they are serious, most of the time they are not. You may need medical treatment
if you get some of the side effects.
Ask your doctor or pharmacist to answer any questions you may have.
Tell your doctor if you notice any of the following and they worry you:
problems with your eye/s such as:
blurred vision, double vision or other visual problems
allergic reactions including redness, swelling and/or itching of the eye
burning and stinging of the eyes, eye pain
watering of the eyes or discharge
irritation or feeling of having something in the eye, dry eyes
swelling of the eyelids, drooping of eyelids
difficulty thinking or working because of:
ringing or buzzing in the ears
difficulty sleeping, nightmares
changes in mood such as depression, memory loss
mouth or stomach problems
feeling sick (nausea), upset stomach, stomach pain
bitter or abnormal taste, dry mouth
sore throat and discomfort when swallowing
cold or flu-like symptoms such as sneezing, runny nose, cough, red or infected throat
feeling of tension or fullness in the nose, cheeks and behind your eyes, sometimes
with a throbbing ache, also called sinusitis
changes in the way your hands and feet feel such as:
cold hands or feet
numbness, tingling and colour change (white, blue then red) in fingers when exposed
to the cold (Raynaud’s Phenomenon)
numbness or tingling in the fingers or toes
symptoms of a urinary tract infection including an urge to urinate frequently and
in small amounts, or painful burning when passing urine
hair loss or thinning
less desire for sex
These are usually mild side effects.
Tell your doctor immediately if you notice any of the following:
fast or irregular heart beats, also called palpitations
slow or irregular heart beats
dizziness and light-headedness, which may be due to low blood pressure
skin rash, itching
swelling of the hands feet or ankles
These may be serious side effects. You may need urgent medical attention.
Serious side effects are rare.
If any of the following happen, stop using COSOPT-Preservative Free and tell your
doctor immediately or go to accident and emergency at your nearest hospital:
wheezing, difficulty in breathing, shortness of breath
very slow pulse, chest pain
swelling of the face, lips, mouth, tongue or throat which may cause difficulty in
breathing or swallowing
severe and sudden onset of pinkish, itchy swellings on the skin, also called hives
These are serious side effects. You may need urgent medical attention. These side
effects are rare.
Other side effects not listed above may also occur in some patients. Tell your doctor
if you notice any other effects.
Do not be alarmed by this list of possible side effects. You may not experience any
After using COSOPT-Preservative Free
Keep your eye drops in a cool place where the temperature stays below 25C. Do not
Do not store it or any other medicine in the bathroom or near a sink.
Do not leave it in the car or on window sills.
Do not carry the eye drops in pockets of your clothes.
Heat and dampness can destroy some medicines.
Keep the eye drops away from light - store unopened pipettes in protective foil pouch.
Keep it where children cannot reach it.
A locked cupboard at least one-and-a-half metres above the ground is a good place
to store medicines.
Write the date on the pouch when you open it and throw out any remaining pipettes
after 15 days.
If your doctor tells you to stop using the eye drops or they have passed their expiry
date, ask your pharmacist what to do with any remaining pipettes.
How does it come?
COSOPT-Preservative Free comes as eye drops in a 0.2mL individual pipette.
A pack contains 15 or 60 individual pipettes.
dorzolamide hydrochloride, equivalent to dorzolamide 2% w/v
timolol maleate, equivalent to timolol 0.5% w/v
water for injections
COSOPT-Preservative Free is supplied in Australia by:
Mundipharma Pty Limited
88 Phillip Street
Sydney NSW 2000
This leaflet was prepared in May 2016.
Australian Register Number:
AUST R 165915.