Cysteamine ophthalmic
Generic name: cysteamine ophthalmic [ sis-TEE-a-meen-off-THAL-mik ]
Brand names: Cystadrops, Cystaran
Dosage form: ophthalmic solution (0.37%; 0.44%)
Drug class:Miscellaneous ophthalmic agents
What is cysteamine ophthalmic?
Cysteamine works by reducing the amount of cystine (an amino acid) in the body. Cysteamine is used in people with cystinosis (SIS-tin-OH-sis), a rare genetic condition that causes a build-up of cystine in the kidneys and other organs, including the eyes.
Cysteamine ophthalmic (for the eyes) is used to keep cystine crystals from building up in the cornea (surface of the eye).
Cysteamine ophthalmic may also be used for purposes not listed in this medication guide.
Warnings
Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Before taking this medicine
Tell your doctor if you are pregnant or breastfeeding.
Cysteamine is not approved for use by anyone younger than 18 years old.
How should I use cysteamine ophthalmic?
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Do not take by mouth. Cysteamine ophthalmic is for use only in the eyes.
Cystaran is usually used once every hour while you are awake. Cystadrops are usually applied 4 times per day. Follow your doctor's dosing instructions very carefully.
Do not use while wearing soft contact lenses. A preservative in cysteamine ophthalmic could permanently stain the lenses. Use the medicine at least 15 minutes before inserting your contact lenses.
Wash your hands before using eye medication.
To apply the eye drops: Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above the eye and squeeze a drop into this pocket. Close your eyes for 1 or 2 minutes.
Use only the number of drops your doctor has prescribed.
Do not touch the tip of the eye dropper or place it directly on your eye. A contaminated dropper can infect your eye, which could lead to serious vision problems.
Storing cysteamine ophthalmic:
Keep the bottle in the original carton.
Store Cystaran in a freezer until you are ready to start using it. Thaw for 24 hours before your first use, then store the bottle tightly closed in a refrigerator or at room temperature. Do not refreeze after thawing.
Store Cystadrops in a refrigerator. After first opening the bottle, store it in a refrigerator or at room temperature tightly closed and protected from light. Do not refrigerate after opening the bottle.
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