Drug information provided by: Merative, Micromedex®

Your doctor should check your progress at regular visits to make sure this medicine is working and that it does not cause unwanted effects. Eye examinations should be included.

This medicine increases the sensitivity of your skin and lips to sunlight. Therefore, exposure to the sun, even through window glass or on a cloudy day, could cause a serious burn. If you must go out during the daylight hours:

  • Before each treatment, cover your skin for at least 24 hours by wearing protective clothing, such as long-sleeved shirts, full-length slacks, wide-brimmed hat, and gloves. In addition, protect your lips with a special sun block lipstick that has a skin protection factor of at least 15. Check with your doctor before using sun block products on other parts of your body before a treatment, since sun block products should not be used on the areas of your skin that are to be treated.
  • After each treatment, cover your skin for at least 8 hours by wearing protective clothing. In addition, use a sun block product that has a skin protection factor of at least 15 on your lips and on those areas of your body that cannot be covered.

If you have any questions about this, check with your health care professional.

Your skin may continue to be sensitive to sunlight for some time after treatment with this medicine. Use extra caution for at least 48 hours following each treatment if you plan to spend any time in the sun. Do not sunbathe during this time.

For 24 hours after you take each dose of trioxsalen, your eyes should be protected during daylight hours with special wraparound sunglasses that totally block or absorb ultraviolet light (ordinary sunglasses are not adequate). This is to prevent cataracts. Your doctor will tell you what kind of sunglasses to use. These glasses should be worn even in indirect light, such as light coming through window glass or on a cloudy day.

Eating certain foods while you are taking trioxsalen may increase your skin's sensitivity to sunlight. To help prevent this, avoid eating limes, figs, parsley, parsnips, mustard, carrots, and celery while you are being treated with this medicine.

This medicine may cause your skin to become dry or itchy. However, check with your doctor before applying anything to your skin to treat this problem.