【科普】有些药物会增加皮肤日光灼伤的危险
发布于 2009-06-04 · 浏览 1305 · IP 福建福建
这个帖子发布于 15 年零 335 天前，其中的信息可能已发生改变或有所发展。
原文链接：
http://www.nytimes.com/2009/06/02/health/02real.html?_r=1&ref=health
REALLY?
The Claim: Some Medications Can Raise the Risk of Sunburn.
By ANAHAD O’CONNOR
Published: June 1, 2009
THE FACTS
Most people know what precautions to take to protect their skin at the beach this summer: slather on the sunscreen, reapply as needed and take breaks in the shade as often as possible.
But few people know that a number of common medications can intensify the effects of sunlight, greatly raising the risk of burning, rashes and other skin problems, even after only a little time in the sun. Studies show that this can happen in at least two ways.
One, known as a photoallergic reaction, occurs when a certain medicine or substance is applied to the skin. Ultraviolet light from the sun transforms the substance in a way that provokes the immune system, leading to irritated skin and eczemalike rashes. The onset of visible symptoms is usually delayed 24 hours to several days.
Far more common is a phenomenon called phototoxic reaction. It occurs when a person ingests the drug or substance in question, then spends time in the sun. Exposing the skin to ultraviolet rays excites molecules of the ingested substance, causing damage to tissue — severe redness and sunburn, for example — that is almost immediately apparent.
The list of drugs that can cause sun sensitivity is long, but among the most common culprits are antibiotics like tetracycline, certain antihistamines and topical antimicrobials. The best remedy is either to limit the use of the offending substance or to take extra precautions, like wearing protective clothing.
THE BOTTOM LINE
Many drugs can raise a person’s sensitivity to sunlight.
REALLY?
The Claim: Some Medications Can Raise the Risk of Sunburn.
By ANAHAD O’CONNOR
Published: June 1, 2009
THE FACTS
Most people know what precautions to take to protect their skin at the beach this summer: slather on the sunscreen, reapply as needed and take breaks in the shade as often as possible.
But few people know that a number of common medications can intensify the effects of sunlight, greatly raising the risk of burning, rashes and other skin problems, even after only a little time in the sun. Studies show that this can happen in at least two ways.
One, known as a photoallergic reaction, occurs when a certain medicine or substance is applied to the skin. Ultraviolet light from the sun transforms the substance in a way that provokes the immune system, leading to irritated skin and eczemalike rashes. The onset of visible symptoms is usually delayed 24 hours to several days.
Far more common is a phenomenon called phototoxic reaction. It occurs when a person ingests the drug or substance in question, then spends time in the sun. Exposing the skin to ultraviolet rays excites molecules of the ingested substance, causing damage to tissue — severe redness and sunburn, for example — that is almost immediately apparent.
The list of drugs that can cause sun sensitivity is long, but among the most common culprits are antibiotics like tetracycline, certain antihistamines and topical antimicrobials. The best remedy is either to limit the use of the offending substance or to take extra precautions, like wearing protective clothing.
THE BOTTOM LINE
Many drugs can raise a person’s sensitivity to sunlight.
最后编辑于 2022-10-09 · 浏览 1305
3 1 点赞
