What Durezol is used for and how to use it
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Durezol - Consumer Medicine Information

Manufacture: Alcon
Country: Canada
Condition: Postoperative Ocular Inflammation, Uveitis
Class: Ophthalmic steroids
Form: Eye drops (ophthalmic)
Ingredients: difluprednate, boric acid, castor oil, glycerin, sodium acetate, sodium EDTA, sodium hydroxide (to adjust the pH to 5.2 to 5.8), polysorbate 80 and water for injection


Difluprednate Ophthalmic Emulsion 0.05% w/v

About this medication

What the medication is used for

DUREZOL (difluprednate) ophthalmic emulsion is used to treat:

  • inflammation and pain associated with cataract surgery
  • endogenous anterior uveitis (inflammation of the uvea i.e. the middle part of the eye)

What it does

DUREZOL ophthalmic emulsion is believed to stimulate the production of certain proteins that help prevent the production of other substances that are part of the inflammatory process (e.g. prostaglandins, leukotrienes). This helps to reduce the pain and inflammation of cataract surgery and uveitis.

When it should not be used

DUREZOL ophthalmic emulsion should not be used if you:

  • are allergic to difluprednate or any ingredients contained in DUREZOL ophthalmic emulsion (see What the important nonmedicinal ingredients are)
  • are allergic to other corticosteroids
  • have eye diseases caused by viruses (such as herpes simplex, vaccinia, and varicella) or caused by bacteria or a fungus
  • think you have any other eye infection

What the medicinal ingredient is

Difluprednate, 0.05% w/v.

What the important nonmedicinal ingredients are

INACTIVE: boric acid, castor oil, glycerin, sodium acetate, sodium EDTA, sodium hydroxide (to adjust the pH to 5.2 to 5.8), polysorbate 80 and water for injection.

PRESERVATIVE: sorbic acid 0.1%.

What dosage forms it comes in

DUREZOL ophthalmic emulsion is a sterile preserved ophthalmic emulsion for topical ophthalmic use only.

Warnings and precautions

BEFORE you use DUREZOL ophthalmic emulsion, talk to your doctor or pharmacist:

  • if you have or have ever had glaucoma (increased pressure in the eye that can lead to gradual loss of vision). DUREZOL ophthalmic emulsion may increase the risk of developing
  • glaucoma when it is used for a long period of time. If you use DUREZOL for 7 days of longer, your doctor will probably monitor the pressure in your eyes.
  • if you have or have ever had herpes simplex virus (a virus that causes sores on the face, lips, genitals, and rectum and can also cause eye infections.)
  • if you currently have an any type of eye infection. Your doctor will probably tell you not to use DUREZOL ophthalmic emulsion.
  • if you have diabetes. You may be at a higher risk of developing glaucoma or cataracts (clouding of the lens) if DUREZOL is used for long periods of time.
  • if you are allergic to difluprednate, other steroid medications, any other medications or any of the ingredients in DUREZOL ophthalmic emulsion.
  • if you are taking any other prescription and nonprescription medications, including nonsteroidal anti-inflammatory drugs (NSAIDs), vitamins, nutritional supplements, and herbal products. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
  • if you are pregnant, plan to become pregnant, are breastfeeding, or planning to breastfeed. If you become pregnant while using DUREZOL ophthalmic emulsion, call your doctor.
  • if you are using another eye drop medication. Use the eye medications at least 10 minutes apart.

While taking DUREZOL ophthalmic emulsions

Tell your doctor if your symptoms do not improve after 2 days of treatment with DUREZOL ophthalmic emulsion. Do not stop using DUREZOL ophthalmic emulsion suddenly without first talking to your doctor.

Slowed healing after surgery

DUREZOL ophthalmic emulsion may slow healing after surgery and increase the risk of certain complications, such as eye infection or worsening an infection. Call your doctor right away if your pain and swelling do not improve or if you experience any of the following: eye redness, itching, tearing or discharge; feeling that something is in your eye; seeing floating spots; sensitivity to light; or red, swollen or crusty eyelids.

If you wear contact lenses

Do not wear any contact lens that has not been approved by your doctor.

Do not use DUREZOL ophthalmic emulsion while you are wearing regular contact lenses. DUREZOL ophthalmic emulsion contains sorbic acid, a preservative that can be absorbed by soft contact lenses and cause discoloration. Wait at least 10 minutes after using DUREZOL ophthalmic emulsion before putting your contact lenses in.

Driving and using machines

DUREZOL ophthalmic emulsion can cause side effects that may impair your vision. Do not drive or use machines until your vision is clear.

Interactions with this medication

No specific drug interaction studies have been done with DUREZOL ophthalmic emulsion.

Tell your doctor or pharmacist if you are taking (or recently took) any topical NSAIDs. Taking DUREZOL ophthalmic emulsion and NSAIDS at the same time may delay healing after surgery.

Please tell your doctor or pharmacist if you are taking (or recently took) any other medicines (including with or without prescription, over the counter, vitamins, minerals, and herbals).

Proper use of this medication

Always use DUREZOL ophthalmic emulsion exactly as your doctor has told you.

Usual dose

Treatment of inflammation and pain after cataract surgery

Apply one drop of DUREZOL ophthalmic emulsion into the pocket between the eyelid and affected eye 4 times daily beginning 24 hours after surgery and continuing for 2 weeks. Then change your dose as directed by your doctor.

Treatment of endogenous anterior uveitis

Apply one drop into the pocket between the eyelid and the affected eye 4 times daily for 14 days. Then change your dose as directed by your doctor.

How to Use

  • Wash your hands thoroughly with soap and water.
  • Check the dropper tip to make sure that it is not chipped or cracked.
  • Avoid touching the dropper tip against your eye or anything else to avoid contamination. Eye drops and eye dropper must be kept clean.
  • Pull down your lower eyelid with a clean finger until there is a ‘pocket’ between the eyelid and your eye. The drop will go in here (picture 1).
  • Bring the bottle tip close to the eye. Do this in front of a mirror if it helps.
  • Gently press on the base of the bottle to release one drop of DUREZOL emulsion at a time
  • Do not squeeze the bottle: it is designed so that a gentle press on the bottom is all that it needs (picture 2).
  • After using DUREZOL emulsion, press a finger into the corner of your eye, by the nose (picture 3). This helps to stop DUREZOL emulsion getting into the rest of the body.
  • If you use drops in both eyes, repeat the steps for your other eye.
  • Close the bottle cap firmly immediately after use. Do not wipe or rinse the dropper tip.
  • If a drop misses your eye, try again.
  • Wipe any excess liquid from your face with a tissue.
  • If you are to use more than one drop in the same eye, wait at least 5 minutes before applying the next drop.
  • Wash your hands to remove any medication.

When you use DUREZOL ophthalmic emulsion, be careful not to let the tip of the bottle touch your eyes, fingers, face, or any surface. If the tip does touch another surface, bacteria may get into the eye drops. Using eye drops that are contaminated with bacteria may cause serious damage to the eye or loss of vision. If you think your eye drops have become contaminated, call your doctor or pharmacist.


In case of drug overdose, contact a health care practitioner, hospital emergency department or regional Poison Control Centre immediately, even if there are no symptoms.

Missed Dose

Use the medication as soon as you remember the missed dose. If it is almost time for your next dose, skip the missed dose and use the medicine at your next regularly scheduled time. Do not use extra medicine to make up the missed dose. Do not double dose.

Side effects and what to do about them

Like all medicines, DUREZOL ophthalmic emulsion can cause side effects, although not everybody gets them.

Side effects in the eye observed with DUREZOL ophthalmic emulsion include: increase in eye pressure; slowed or impaired healing of the eye; reduced vision; clouding of the lens; eye inflammation with or without surface damage; floating particles that appear as spots; problems with the iris, including inflammation; separation of vitreous gel from the retina, which may result in retinal detachment; bloodshot eyes; eyelid inflammation or swelling; eyelashes that curve towards the eye; problems with the cornea, including damage, tiny tears and ulcers; dry eye; flashes of light in vision; damage to the eye surface; and complications following cataract surgery, including contraction of the lens capsule, displacement of the pupil, dislocation of the lens and removal of blebs from the eye.

Side effects in the rest of the body observed with DUREZOL ophthalmic emulsion include: dizziness, diarrhea, skin discoloration and increased heart rate.

Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

Serious side effects, how often they happen and what to do about them

Symptom/effect Talk with your doctor or pharmacist Stop taking
drug and
call your
doctor or
Only if
In all
Allergic (hypersensitivity) reactions / with symptoms such as hives, difficulty breathing; swelling of the face, lips, tongue, or throat
Vision changes/ with symptoms such as sudden vision loss, blurred vision, tunnel vision, eye pain, eye itching, irritation or redness, severe headache, sensitivity to light, foreign body sensation in eye
New infection- with symptoms such as eye swelling, weeping, drainage, crusting

This is not a complete list of side effects. For any unexpected effects while taking DUREZOL ophthalmic emulsion, contact your doctor or pharmacist.


Store at 15 -25°C (59 -77°F). Do not freeze. Protect from light. When not in use keep the bottles in the protective carton.

Keep DUREZOL ophthalmic emulsion out of sight and reach of children.


You can report any suspected adverse reactions associated with the use of health products to the Canada Vigilance Program by one of the following 3 ways:
  • Report online at www.healthcanada.gc.ca/medeffect
  • Call toll-free at 1-866-234-2345
  • Complete a Canada Vigilance Reporting Form and:
    • Fax toll-free to 1-866-678-6789, or
    • Mail to: Canada Vigilance Program
                    Health Canada
                    Postal Locator 0701E
                    Ottawa, Ontario
                    K1A 0K9

    Postage paid labels, Canada Vigilance Reporting Form and the adverse reaction reporting guidelines are available on the MedEffectTM Canada Web site at www.healthcanada.gc.ca/medeffect.

NOTE: Should you require information related to the management of side effects, contact your health professional. The Canada Vigilance Program does not provide medical advice.

More information

This document plus the full product monograph, prepared for health professionals can be found at:
http://www.alcon.ca or by contacting the sponsor, Alcon Canada Inc., at: 1-800-613-2245.