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 bronchospasm Plaquenil ff erg The sun, for example can have positive and negative effects on plant and animal life. At low levels, radiation can be beneficial to the environment 1 2 3. On the other hand ionized radiation such as x-rays, gamma rays, alpha and beta particles can be particularly harmful in excessive amounts 3. Biological Effect of UV Light. While UVB radiation is widely recognized for its harmful effects on human skin and links to skin cancer, each of the UV bands UVA, UVB and UVC create different risks for humans. UVC radiation refers to wavelengths shorter than 280 nm. Unlike X-rays, ultraviolet radiation has a low power of penetration; hence, its direct effects on the human body are limited to the surface skin. The direct effects include reddening of the skin, pigmentation development suntan, aging, and carcinogenic changes. Ultraviolet sunburns can be mild, causing only redness and tenderness, or they. 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 Ultraviolet UV Radiation FDA, Is UVC Safe? UV Light and Health Effects - Klaran Hydroxychloroquine sulphate tablets in india 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 -. Ultraviolet radiation Definition, Examples, & Effects.. Ultraviolet UV Radiation - American Cancer Society. 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. 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. Chloroquine and hydroxychloroquine have long been suspected of causing light sensitivity in patients with rheumatoid arthritis RA. To gain insight into the effect of chloroquines and ultraviolet UV light in RA we have phototested 25 RA patients with and without chloroquine.