Patient leaflet - Cosopt Imulti 20 mg / ml + 5 mg / ml eye drops solution
1. What COSOPT iMulti is and what it is used for
COSOPT iMulti contains two
medicines: dorzolamide and timolol.
Dorzolamide belongs to a group
of medicines called “carbonic
anhydrase inhibitors”.
Timolol belongs to a group of
medicines called “beta blockers”.
These medicines lower the pressure in
the eye in different ways.
COSOPT iMulti is prescribed to
lower raised pressure in the eye
in the treatment of glaucoma
when beta-blocker eye drop medicine
used alone is not adequate.
COSOPT iMulti eye drops solution is
a sterile solution that does not contain
a preservative.
2. What you need to know before you use COSOPT iMulti
Do not use COSOPT iMulti
if you are allergic to dorzolamide
hydrochloride, timolol maleate or
any of the other ingredients of this
medicine (listed in section 6).
if you have now or had in the
past respiratory problems, such
as asthma, or severe chronic
obstructive bronchitis (severe
lung disease which may cause
wheeziness, dificulty in breathing
and/or long-standing cough).
if you have a slow heart beat, heart
failure or disorders of heart rhythm
(irregular heart beats).
if you have severe kidney disease or
problems, or a prior history of kidney
stones.
if you have excess acidity of
the blood caused by a build
up of chloride in the blood
(hyperchloraemic acidosis).
If you are not sure whether you should
use this medicine, contact your doctor
or pharmacist.
Warnings and precautions
Talk to your doctor before using
COSOPT iMulti if you have now or have
had in the past:
coronary heart disease (symptoms
can include chest pain or tightness,
breathlessness or choking), heart
failure, low blood pressure.
disturbances of heart rate such as
slow heart beat.
breathing problems, asthma or
chronic obstructive pulmonary
disease.
poor blood circulation disease (such
as Raynaud’s disease or Raynaud’s
syndrome).
diabetes as timolol may mask signs
and symptoms of low blood sugar.
overactivity of the thyroid gland
as timolol may mask signs and
symptoms.
any allergies or anaphylactic
reactions.
muscle weakness or have been
diagnosed as having myasthenia
gravis.
if you wear soft contact lenses,
COSOPT iMulti has not been
studied in patients wearing contact
lenses.
If you have a history of contact
hypersensitivity to silver, you should not
use this medicine as dispensed drops
may contain traces of silver from the
container closure.
Tell your doctor before you have an
operation that you are using COSOPT
iMulti as timolol may change effects
of some medicines used during
anaesthesia.
When COSOPT iMulti is instilled into
the eye it may affect the entire body.
Talk to your doctor if during the
treatment with COSOPT iMulti you:
develop any eye irritation or any
new eye problems such as redness
of the eye or swelling of the eyelids.
suspect that COSOPT iMulti is
causing an allergic reaction or
hypersensitivity (for example,
skin rash, severe skin reaction, or
redness and itching of the eye). Stop
using this medicine and contact your
doctor immediately.
develop an eye infection, receive
an eye injury, have eye surgery
or develop a reaction including
new or worsening symptoms.
Use in children
There is limited experience
with COSOPT (preserved formulation)
in infants and children.
Use in elderly
In studies with COSOPT (preserved
formulation), the effects were similar in
both elderly and younger patients.
Use in patients with liver impairment
Tell your doctor about any liver
problems you have now or have
suffered from in the past.
Other medicines and COSOPT iMulti
COSOPT iMulti can affect or be
affected by other medicines you are
using, including other eye drops for
the treatment of glaucoma. Tell your
doctor if you are using or intend to use
medicines to lower blood pressure,
heart medicine or medicines to treat
diabetes. Tell your doctor or pharmacist
if you are using, have recently used or
might use any other medicines. This is
particularly important if you are;
taking medicine to lower blood
pressure or to treat heart disease
(such as calcium channel blockers,
beta-blockers or digoxin).
taking medicines to treat a disturbed
or irregular heartbeat such
as calcium channel blockers,
beta-blockers or digoxin.
- using another eye drop that contains a beta-blocker.
- taking another carbonic anhydrase inhibitor such as acetazolamide.
taking monoamine oxidase inhibitors
(MAOIs).
- taking a parasympathomimetic medicine which may have been prescribed to help you pass urine. Parasympathomimetics are also a particular type of medicine which is sometimes used to help restore normal movements through the bowel.
- taking narcotics such as morphine used to treat moderate to severe pain.
- taking medicines to treat diabetes.
- taking antidepressants known as fluoxetine and paroxetine.
- taking a sulfa medicine.
- taking quinidine (used to treat heart conditions and some types of malaria).
Pregnancy and breast-feeding
Ask your doctor or pharmacist for advice before taking any medicine. Use in pregnancy
Do not use COSOPT iMulti if you are pregnant unless your doctor considers it necessary.
Use in breast-feeding
Do not use COSOPT iMulti if you are breast-feeding. Timolol may get into your milk. Ask your doctor for advice before taking any medicine during breast-feeding.
Driving and using machines
No studies on the effects on the ability to drive or use machines have been performed. There are side effects associated with COSOPT iMulti, such as blurred vision, which may affect your ability to drive and/or operate machinery. Do not drive or operate machinery until you feel well or your vision is clear.
3. How to use COSOPT iMulti
Always use this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure. The appropriate dosage and duration of treatment will be established by your doctor. The recommended dose is one drop in the affected eye(s) in the morning and in the evening. If you are using COSOPT iMulti with another eye drop, the drops should be instilled at least 10 minutes apart. Do not change the dose of the medicine without consulting your doctor. If you have difficulty administering your eye drops, seek the assistance of a family member or carer. Do not allow the tip of the multidose container to touch the eye or areas around the eye. It could cause injury to your eye. The eye drops solution may also become contaminated with bacteria that can cause eye infections leading to serious damage of the eye, even loss of vision. To avoid possible contamination of the multidose container, wash your hands before using this medicine and keep the tip of the multidose container away from contact with any surface. Instructions for use Before instillation of the eye drops:
- Wash your hands before opening the bottle.
- Do not use this medicine if you notice that the tamper-proof seal on the bottle neck is broken before you first use it.
- When using the bottle for the very first time, before delivering a drop to the eye, you should practise using the bottle by squeezing it slowly to deliver one drop away from the eye.
- When you are confident that you can deliver one drop at a time, choose the position that you find most comfortable for the instillation of the drops (you can sit down, lie on your back, or stand in front of a mirror).
- Every time when opening a new bottle, drop one drop to waste to activate the bottle. Instillation:
Hold the
bottle directly
below the cap and turn the cap to open the bottle. Do not touch anything with the tip of the bottle to avoid contamination of the solution.
- Tilt your head backwards and hold the bottle above your eye.
Pull the lower
eyelid down and look up. Squeeze the bottle gently in the middle and let a drop fall into your eye. Please note that there might be a few seconds delay between squeezing and the drop coming out. Do not squeeze too hard.
Close your eye and
press the inner corner of the eye with your finger for about two minutes. This helps to stop the medicine from getting into the rest of the body.
- Repeat instructions 2 – 4 to deliver a drop into the other eye, if your doctor has instructed you to do this. Sometimes only one eye needs to be treated and your doctor will advise if this applies to you and which eye needs treatment.
After each use and
prior to recapping, the bottle should be shaken once in a downwards direction, without touching the dropper tip, in order to remove any residual liquid from the tip. This is necessary in order to ensure delivery of subsequent drops.
- Wipe off any excess solution from the skin around the eye.
- At the end of the 2 months in-use shelf life of the medicine, there will be some COSOPT iMulti left in the bottle. Do not attempt to use the excess medicine remaining in the bottle after you have completed the course of treatment. Do not use the eye drops for longer than 2 months after first opening the bottle. If you are not sure how to administer your medicine, ask your doctor, pharmacist or nurse. Package leaflet: information for the user COSOPT® iMulti 20 mg/ml + 5 mg/ml eye drops, solution
(dorzolamide / timolol)
37 g/m2 MATERIAL: Carta uso mano GRAMMAGE:
Date: 14 JAN 2026
Site SPEC Number: N/A
777392SAF12/3A
SGK Job Number:
Tamper Evident/Resistant(Y/N):
CMO:
Site Item Number:
122644036_404418487
Braille: N/A Printed Packaging
Material Number:
777392SAF12/4C
Serialization (Y/N):
Variable Data Info:
N
N/A
N
7392SAF12
Tubilux (Pomezia)
Profile Technical
Info
COMMERCIAL
777392SAF12/4C If you use more COSOPT iMulti than you should
If you put too many drops in your eye or swallow any of the contents of the container, among other effects, you may become light-headed, have difficulty breathing, or feel that your heart rate has slowed. Contact your doctor immediately.
If you forget to use COSOPT iMulti
It is important to use COSOPT iMulti as prescribed by your doctor.
If you miss a dose, use it as soon as possible. However, if it is almost time for the next dose, skip the missed dose and go back to your regular dosing schedule.
Do not use a double dose to make up for the forgotten dose.
If you stop using COSOPT iMulti
If you want to stop using this medicine talk to your doctor first.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
4. Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Serious side effects:
If you experience any of the
following side effects, stop using this medicine and seek immediate medical advice as these could be signs of a reaction to the medicine.
Rare (may affect up to 1 in
1,000 people):
chest pain, oedema (fluid build
up), changes in the rhythm or speed of the heartbeat, congestive heart failure (heart disease with shortness of breath and swelling of feet and legs due to fluid build up), cardiac arrest, heart block, low blood pressure, cerebral ischaemia (reduced blood supply to the brain), stroke
shortness of breath, respiratory
failure, constriction of the airways in the lungs
signs and symptoms of systemic
allergic reactions, including angioedema, urticaria, pruritus, rash, anaphylaxis
severe skin reactions, including
swelling beneath the skin
Other side effects:
You can usually carry on using the drops, unless the effects are serious. If you’re worried, talk to a doctor or pharmacist. Do not stop using COSOPT iMulti without speaking to your doctor. The following adverse reactions have been reported with COSOPT iMulti or one of its components either during clinical trials or during post-marketing experience:
Very Common (may affect more than 1 in 10 people):
Burning and stinging of the eyes,
taste perversion.
Common (may affect up to 1 in 10 people):
Effects in the eye: redness in and
around the eye(s), watering or itching of the eye(s), corneal erosion (damage to the front layer of the eyeball), swelling and/or irritation in and around the eye(s), feeling of having something in the eye, decreased corneal sensitivity (getting something in the eye and not feeling it), eye pain, dry eyes, blurred vision.
General side effects: headache,
sinusitis (feeling of tension or fullness to the nose), nausea, weakness/tiredness, fatigue. Uncommon (may affect up to 1 in 100 people):
Effects in the eye: inflammation
of the iris, visual disturbances including refractive changes (due to withdrawal of miotic therapy in some cases).
General side effects: dizziness,
depression, slow heartbeat, fainting, shortness of breath, indigestion, kidney stones.
Rare (may affect up to 1 in
1,000 people):
Effects in the eye:
temporary short sightedness which may resolve when treatment is stopped, detachment of the layer below the retina that contains blood vessels following from filtration surgery which may cause visual disturbances, drooping of the eyelids (making the eye stay half closed), double vision, eyelid crusting, swelling of the cornea (with symptoms of visual disturbances), low pressure in the eye.
General side effects: forceful
heartbeat that may be rapid or irregular (palpitations), Raynaud’s phenomenon, swelling or coldness of your hands and feet and reduced circulation in your arms and legs, leg cramps and/or leg pain when walking (claudication), cough, throat irritation, dry mouth, insomnia, nightmares, memory loss, tingling or numbness of the hands or feet, an increase in signs and symptoms of myasthenia gravis (muscle disorder), decreased sex drive, systemic lupus erythematosus (an immune disease which may cause an inflammation of internal organs), ringing noises in your ear, rhinitis, nose bleed, diarrhoea, contact dermatitis, hair loss, skin rash with white silvery coloured appearance (psoriasiform rash), Peyronie’s disease (which may cause a curvature of the penis), allergic type reactions such as rash, hives, itching, in rare cases possible swelling of the lips, eyes and mouth, wheezing.
Like other medicines applied into your eyes, timolol is absorbed into the blood. This may cause similar side effects as seen with oral beta-blocking agents. Incidence of side effects after topical ophthalmic administration is lower than when medicines are, for example, taken by mouth or injected. Listed additional side effects include reactions seen within the class of beta-blockers when used for treating eye conditions. Not known (frequency cannot be estimated from the available data):
Low blood glucose levels, abdominal pain, vomiting, muscle pain not caused by exercise, sexual dysfunction, hallucination, foreign body sensation in eye (feeling that there is something in your eye), abnormal sensitivity of the eyes to light, increased heart rate and increased blood pressure.
Reporting of side effects
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme, website www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
5. How to store COSOPT iMulti
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 bottle after EXP. The expiry date refers to the last day of that month.
Do not store above 25°C.
After first opening the bottle, the solution can be used for 2 months. The bottle must be kept tightly closed. Do not use this medicine if you notice that the seal is broken the first time you use the container.
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 COSOPT iMulti contains
The active substances are dorzolamide and timolol.
Each ml contains 20 mg of dorzolamide (as 22.26 mg dorzolamide hydrochloride) and 5 mg of timolol (as 6.83 mg timolol maleate).
- The other ingredients are hydroxyethylcellulose, mannitol, sodium citrate, sodium hydroxide, and water for injections.
What COSOPT iMulti looks like and contents of the pack
COSOPT iMulti is a clear, colourless to nearly colourless slightly viscous solution, practically free from visible particles provided in a white plastic bottle with a white Novelia dropper applicator and a white plastic tamper-proof screw cap.
Pack sizes: 1, 2 or 3 bottles in a carton Not all pack sizes may be marketed. Marketing Authorisation Holder and Manufacturer
Marketing Authorisation Holder
Santen Oy
Niittyhaankatu 20
33720 Tampere
Finland
Manufacturer
Santen Oy
Kelloportinkatu 1
33100 Tampere
Finland
This leaflet was last revised in 01/2026.
HOW CAN YOU OBTAIN MORE INFORMATION ABOUT COSOPT iMULTI, INCREASED EYE PRESSURE OR GLAUCOMA?
This leaflet gives the most important information about COSOPT iMulti. If you have any questions after you have read it, ask your doctor or pharmacist, who can give you more information. Further information about glaucoma is available from:
International Glaucoma Association (IGA)
Woodcote House, 15 Highpoint Business Village
Henwood
Ashford
Kent, TN24 8DH
Tel: 01233 648170
Registered Charity number 274681. Alternatively, if you or someone you know has problems with their vision, and you require further advice or information, please phone the Royal National Institute for the Blind (RNIB) Helpline on 0303 123 9999.
(The IGA and RNIB are independent UK charities and are not associated with Santen Oy.)
Santen Oy,
Niittyhaankatu 20, 33720 Tampere, Finland
37 g/m2 MATERIAL: Carta uso mano GRAMMAGE: