This Web page provides an overview of the major health problems linked to overexposure to UV radiation. Understanding these risks and taking sensible precautions will help you enjoy the sun while reducing your chances of sun-related health problems. Plaquenil and infection risk Hydroxychloroquine sulphate tablets Ultraviolet UV light makes up just a small portion of the sun’s rays, but it is the primary cause of skin damage. Exposure to UV light causes damage to DNA in skin cells, increases the risk of skin cancer and accelerates signs of aging such as fine lines, deep wrinkles and dark spots. There are several negative effects of UV light on humans. Increasing the risk of skin cancer is the most well-known of these, with about 90 percent of skin cancers being down to UV radiation mainly UV-B, but UV-A rays are implicated too. THE PROTECTIVE EFFECT OF CHLOROQUINE AGAINST ULTRAVIOLET INDUCED BIOCHEMICAL CHANGES. OGURA R, KNOX JM. PMID 14172205 PubMed - indexed for MEDLINE MeSH Terms. Chloroquine* Dermatitis, Phototoxic* Pharmacology* Photosensitivity Disorders* Polarography* Radiation-Protective Agents* Rats; Research* Sulfhydryl Compounds* Sulfides* Ultraviolet. One in five Americans will develop skin cancer in their lifetime. Unprotected exposure to UV radiation is the most preventable risk factor for skin cancer. Each year, more new cases of skin cancer are diagnosed in the U. than new cases of breast, prostate, lung, and colon cancer combined. Effects of ultraviolet ray on chloroquine Sensitivity to UV light during treatment with chloroquine., UV Light Positive & Negative Effects Sciencing Effects of plaquenil on vision If a child takes chloroquine by accident, get medical help right away. If you are 65 or older, use chloroquine with care. You could have more side effects. Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using chloroquine while you are pregnant. Preventing malaria Chloroquine Indications, Side Effects, Warnings -. THE PROTECTIVE EFFECT OF CHLOROQUINE AGAINST ULTRAVIOLET.. Ultraviolet UV Radiation - American Cancer Society. Health Effects of UV Radiation. Ozone layer depletion decreases our atmosphere’s natural protection from the sun’s harmful ultraviolet UV radiation. This Web page provides an overview of the major health problems linked to overexposure to UV radiation. Understanding these risks and taking sensible precautions will help you enjoy the sun. Ultraviolet UV radiation that reaches the Earth’s surface is in wavelengths between 290 and 400 nm nanometers, or billionths of a meter. This is shorter than wavelengths of visible light, which are 400 to 700 nm. People and plants live with both helpful and harmful effects of ultraviolet UV radiation from the sun. U ltraviolet UV is an electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. UV radiation constitutes about 10% of the total light output of the Sun, and is thus present in sunlight.