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Phototoxins are toxins that can cause allergic reactions in particularly susceptible individuals and which can cause dangerous photosensitivity in a much broader range of subjects. Phototoxins are common in: a variety of plants (including food plants where they may be a biological defence): many citruses contain essential oils that are ...
Lisinopril leaves the body completely unchanged in the urine. [1] [16] The half-life of lisinopril is 12 hours, and is increased in people with kidney problems. [1] [16] While the plasma half-life of lisinopril has been estimated between 12 and 13 hours, the elimination half-life is much longer, at around 30 hours. [18]
Many synthetic compounds, including drug substances like tetracyclines or fluoroquinolones, are known to cause these effects. Surface contact with some such chemicals causes photodermatitis, and many plants cause phytophotodermatitis. Light-induced toxicity is a common phenomenon in humans; however, it also occurs in other animals.
Photosensitivity is the amount to which an object reacts upon receiving photons, especially visible light. In medicine, the term is principally used for abnormal reactions of the skin, and two types are distinguished, photoallergy and phototoxicity .
Drug-induced photosensitivity Photosensitive drug reaction secondary to medications may cause phototoxic, photoallergic, and lichenoid reactions, and photodistributed telangiectasias , as well as pseudoporphyria.
Light sensitivity or photosensitivity refers to a notable or increased reactivity to light. Apart from vision , human beings have many physiological and psychological responses to light. In rare individuals an atypical response may result in serious discomfort, disease, or injury.
Many medications and conditions can cause sun sensitivity, including: Sulfa used in some drugs, among them some antibiotics, diuretics, COX-2 inhibitors, and diabetes drugs. [1] Psoralens, coal tars, photo-active dyes (eosin, acridine orange) Musk ambrette, methylcoumarin, lemon oil (may be present in fragrances) PABA (found in sunscreens)
Photopolymerization can occur in two ways. Photopolymerization can occur directly wherein the monomers absorb the incident light and begin polymerizing, or it can occur through a photosensitizer-mediated process where the photosensitizer absorbs the light first before transferring energy into the monomer species. [8] [9]