You may experience more redness, itching, skin scaling, peeling and dry skin the first several weeks as your body adjusts to the medication. Dry eyes, eye irritation, crusting of the eye lids, increased sensitivity to sunlight, dry mouth, peeling of the skin of fingertips, palms or soles of feet, chapped lips, runny nose, thirst, taste changes and hair loss may also occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: decreased night vision, fever, chills, aches and pain in the bones or joints, difficulty moving.
Get medical help right away if you have any very serious side effects, including: persistent/severe headache, other vision changes (e.g., blurred/double vision, decreased vision), persistent nausea/vomiting, mood changes (e.g., depression, aggressive or violent behavior, and in rare cases thoughts of suicide), yellowing of the skin or eyes, dark urine, stomach pain.
Contact lens wearers may be uncomfortable while taking this drug because it causes dry eyes.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.