|LETTER TO EDITOR
|Year : 2000 | Volume
| Issue : 5 | Page : 276
Sparfloxacin - Induced photosensitivity - Dose related
BB Mahajan, RR Gupta, Geetha Jr Garg
B B Mahajan
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Mahajan B B, Gupta R R, Garg GJ. Sparfloxacin - Induced photosensitivity - Dose related. Indian J Dermatol Venereol Leprol 2000;66:276
|How to cite this URL:|
Mahajan B B, Gupta R R, Garg GJ. Sparfloxacin - Induced photosensitivity - Dose related. Indian J Dermatol Venereol Leprol [serial online] 2000 [cited 2020 Jun 5];66:276. Available from: http://www.ijdvl.com/text.asp?2000/66/5/276/4949
To the Editors,
Sparfloxacin is a newer difluorinated quinolone antimicrobial agent effective against gram + ve, gram-ve and anaerobic bacteria. Various adverse effects noted are -GIT disturbances (nausea, vomiting, abdominal pain and diarrhoea) headache, tremors, convulsions, insomnia and parasthesia as with other fluoroquinolones.  Several investigators have reported that sparfloxacin frequently produces a photosensitive dermatitis. Quinine and quinidine can cause a photodistributed lichenoid eruption , and they share a common chemical structure, a quinolone frame, which is also a component of sparfloxacin. Thus, it is likely that sparfloxacin causes a photodistributed lichenoid eruption by a mechanism similar to that of quinine and quinidine.
Sparfloxacin, a new fluoroquinolone, having broad spectrum antibacterial activity and long biological half life (16 hours) is being used extensively in skin and soft tissue infections. Whenever sparfloxacin was used in dose of 400 mg. or more it frequently cause photosensitive dermatitis on the butterfly area of the face with a typical ashy gray colour (lichenoid colour) after about 5-7 days. But the photosensitive rash was not observed in patients using sparfloxacin in a dose of 200 mg. daily even after 14 days of therapy.
The risk of photoallergy and photosensitivity from quinolone has been extensively investigated. The photosensivity reaction may be sun burn like, eczematous, lichenoid or sometimes bullous.  The bullous lesion has been thought to be a result of phototoxic reaction and eczematous lesion as a result of photoallergic reaction.  It is not clear whether lichenoid lesions are a result of phototoxic or photoallergic reaction.
Our clinical observation which we would like to share is that sparfloxacin induced photosensitivity is dose related. So due precaution should be taken to lessen photosensitive reactions while prescribing sparfloxacin in higher doses i.e. 400 mg. or more for more than 5-7 days.
| References|| |
|1.||Goodman &Gillman's: The Pharmacological basis of Therapeutics, 9th edition. 1996 ; P 1067. |
|2.||Wolf R, Dorfman B, Krakowski A. Quinidine induced lichenoid and eczematous photodermatitis. Dermatologica 1987; 174: 285-289. [PUBMED] |
|3.||Meyrick Thomas RH, Munro DD. Lichen planus in a photosensitive distribution due to quinine. Clin Exp Dermatol 1986 ; 11: 97 -101. [PUBMED] |
|4.||Potter TS, Hashimoto K. Curtaneous photosensitivity to medications. Compr Ther 1994; 20: 414-417. [PUBMED] |
|5.||Epstein JH. Phototoxicity and Photoallergy in man. J Am Acad Dermatol 1983; 8: 141-147. [PUBMED] |