Dorzolamide and timolol (Ophthalmic route)
dor-ZOLE-a-mide hye-droe-KLOR-ide, TIM-oh-lol MAL-ee-ate
Antiglaucoma, Beta-Adrenergic Blocker/Carbonic Anhydrase Inhibitor Combination
Uses of This Medicine:
Dorzolamide and timolol ophthalmic (eye) drops is used to treat increased pressure in the eye caused by open-angle glaucoma or a condition called hypertension of the eye. Both eye conditions are caused by high pressure in your eye and can lead to pain from pressure in your eye and then can eventually harm your vision. This medicine can help you keep your sight by reducing the pressure in your eye and stopping eye pain.
This medicine is available only with your doctor's prescription.
Before Using This Medicine:
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of dorzolamide and timolol eye drops in children 2 years of age and older. However, safety and efficacy have not been established in children younger than 2 years of age.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of dorzolamide and timolol eye drops in the elderly.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other medical problems—
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
Proper Use of This Medicine:
Your eye doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.
This medicine comes with a patient information insert. Read and follow the instructions in the insert carefully. Ask your doctor if you have any questions.
Use only the brand of this medicine that your doctor prescribed. Do not replace preservative-containing (Cosopt®) with the product without preservative (Cosopt® PF).
Cosopt® PF eye drops is a sterile solution that does not contain any preservatives. Use the solution in the single-unit containers immediately after opening. Throw away any unused medicine after each use.
If you normally wear soft contact lenses, remove them before you use Cosopt® eye drops. Wait at least for 15 minutes before putting the contact lenses back in.
If you are using Cosopt® PF eye drops, you may not need to remove your contact lenses while using this medicine.
To use the Cosopt® eye drops:
To use the Cosopt® PF eye drops:
If your doctor ordered two different eye drops to be used together, wait at least 5 or 10 minutes between the times you apply the medicines. This will help to keep the second medicine from “washing out” the first one.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep the Cosopt® PF single-use containers in the original pouch to protect from light. Write down the date you open the foil pouch in the space provided in the pouch. Throw away any unused single-use containers 15 days after opening the pouch.
Precautions While Using This Medicine:
It is very important that your doctor check the progress of you or your child at regular visits to make sure that this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.
If itching, redness, swelling, or other signs of eye or eyelid irritation occur, stop using this medicine and check with your doctor. These signs may mean that you or your child are allergic to this medicine.
This medicine may cause heart failure in some patients. Check with your doctor right away if you or your child are having chest pain or discomfort; dilated neck veins; extreme fatigue; irregular breathing; an irregular heartbeat; shortness of breath; swelling of the face, fingers, feet, or lower legs; weight gain; or wheezing.
Serious allergic reactions may occur while using this medicine. Stop using this medicine and check with your doctor right away if you or your child have any of the following symptoms: black, tarry stools; blistering, peeling, or loosening of the skin; chills; dark urine; joint or muscle pain; rash; red skin lesions, often with a purple center; sores, ulcers, or white spots in the mouth or on the lips; unusual bleeding or bruising; unusual tiredness or weakness; or yellow eyes or skin.
This medicine may cause changes in your blood sugar levels. Also, this medicine may cover up signs of low blood sugar, such as a rapid pulse rate. Check with your doctor if you or your child have these problems or if you notice a change in the results of your blood or urine sugar tests.
Before you have any kind of surgery, dental treatment, or emergency treatment, tell the medical doctor or dentist in charge that you are using this medicine. You may need to stop using this medicine several days before having surgery or medical tests.
It is very important that you check with your doctor if you get an injury or infection in your eye or if you are scheduled to have eye surgery. Your doctor will tell you whether to keep using the same container of eye drops or whether you should start using a fresh bottle of eye drops.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Side Effects of This Medicine:
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Get emergency help immediately if any of the following symptoms of overdose occur:
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Last Updated: 4/4/2014
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