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Photosensitizing drugs. When we are in danger of sun allergy

MedExpress Team

Irena Piekarska

Published May 31, 2023 08:00

Photosensitizing drugs. When we are in danger of sun allergy - Header image
Fot. Getty Images/iStockphoto
High doses of ultraviolet radiation can cause photoallergic reactions in drug users. Some pass without a trace, but there is a risk that some will leave hard-to-remove discoloration or scars on the skin. Photosensitization symptoms cause discomfort and sometimes require long-term specialized treatment.

The only completely safe drug that is not harmed by the sun is vitamin D. Besides, there are many preparations that, when exposed to UV radiation, can cause drug-induced allergic reactions on the skin. This applies to almost all groups of drugs, ranging from antibiotics, diuretics, cardiac, hormonal, anti-atherosclerotic and anti-fungal drugs, chemotherapeutic, anti-diabetic and anti-inflammatory drugs, among others, to supplements. It does not matter whether the drug is taken orally or as a preparation applied to the skin. It is worth remembering that any drug, even those considered very safe, can cause adverse reactions, short and long term. Therefore, it is always necessary to check in the leaflet whether sun exposure poses a risk of their occurrence.

Allergic reactions can trigger both natural and synthetic components of the ingested product. And while under the influence of sunlight positive processes such as vitamin D synthesis occur in the body, under the influence of some drug components they can turn into a pathological reaction, the symptoms of which are various types of photodermatoses. One of the most common is photoallergy, the symptoms of which resemble...

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