Mayo Clinic Health Manager
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It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly and to check for unwanted effects.
This medicine may cause some people to become dizzy, drowsy, tired, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert.
Check with your doctor right away if you experience fainting.
If you wear soft contact lenses: These eye drops contain a preservative that could be absorbed by soft lenses. Wait at least 15 minutes after putting these eye drops in before you put in your soft contact lenses.
Brimonidine may cause your eyes to become more sensitive to light than they are normally. Wearing sunglasses and avoiding too much exposure to bright light may help lessen the discomfort.