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British Medical Journal (Clinical Research Ed.) logoLink to British Medical Journal (Clinical Research Ed.)
. 1982 May 8;284(6326):1365–1368. doi: 10.1136/bmj.284.6326.1365

Benoxaprofen: side-effect profile in 300 patients.

J P Halsey, N Cardoe
PMCID: PMC1498268  PMID: 6803978

Abstract

Out of 300 patients who had taken benoxaprofen for a mean of 6.4 months, 196 (65.3%) reported side effects, resulting in 104 patients (34.6%) having the drug withdrawn. Out of 42 patients aged over 70, 35 (83.3%) had side effects and 29 (69.0%) had the drug withdrawn because of them. cutaneous side effects accounted for 180 (69.5%) of all 259 side effects reported. The commonest cutaneous side effect was photosensitivity, which occurred in 86 patients (28.6%). Photosensitivity, which occurred in half of the patients treated in the summer, resulted in withdrawal of benoxaprofen in 26 (30.2%) of the patients who experienced it. Onycholysis was observed in 38 patients (12.6%) and was frequently unnoticed by patients. The overall incidence of gastric side effects was 12.6% (38 patients), and the figure rose to 40.5% (17 cases) in patients over 70. During treatment with benoxaprofen one patient developed an active duodenal ulcer but no cases of major gastrointestinal haemorrhage occurred. Multiple subepidermal cysts (milia) were observed in 16 patients, who had been treated for a mean of 10.8 months. These findings show that benoxaprofen is a potent phototoxic drug and that the manufacturers' recommended dosage of 600 mg daily is associated with an unacceptable incidence of side effects in the elderly.

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Selected References

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  1. Atkinson M. H., Brown T. A., Robinson H. S., Willkens R. F. Crossover comparison of benoxaprofen and naproxen in rheumatoid arthritis. J Rheumatol Suppl. 1980;6:109–115. [PubMed] [Google Scholar]
  2. Bird H. A., Rhind V. M., Pickup M. E., Wright V. A comparative study of benoxaprofen and indomethacin in ankylosing spondylitis. J Rheumatol Suppl. 1980;6:139–142. [PubMed] [Google Scholar]
  3. Burton J. L., Marshall A. Hypertrichosis due to minoxidil. Br J Dermatol. 1979 Nov;101(5):593–595. [PubMed] [Google Scholar]
  4. Dawber R. P., Samman P. D., Bottoms E. Fingernail growth in idiopathic and psoriatic onycholysis. Br J Dermatol. 1971 Dec;85(6):558–560. doi: 10.1111/j.1365-2133.1971.tb14082.x. [DOI] [PubMed] [Google Scholar]
  5. Fenton D. A., English J. S., Wilkinson J. D. Reversal of male-pattern baldness, hypertrichosis, and accelerated hair and nail growth in patients receiving benoxaprofen. Br Med J (Clin Res Ed) 1982 Apr 24;284(6324):1228–1229. doi: 10.1136/bmj.284.6324.1228. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Fenton D. A., Wilkinson J. D., English J. S. Photosensitization to benoxaprofen not due to ultraviolet A alone. Lancet. 1981 Nov 28;2(8257):1230–1231. doi: 10.1016/s0140-6736(81)91467-7. [DOI] [PubMed] [Google Scholar]
  7. Hamdy R. C., Murnane B., Perera N., Woodcock K., Koch I. M. The pharmacokinetics of benoxaprofen in elderly subjects. Eur J Rheumatol Inflamm. 1982;5(2):69–75. [PubMed] [Google Scholar]
  8. Huskisson E. C. Antiinflammatory drugs. Semin Arthritis Rheum. 1977 Aug;7(1):1–20. doi: 10.1016/s0049-0172(77)80002-4. [DOI] [PubMed] [Google Scholar]
  9. Kligman A. M., Kaidbey K. H. Phototoxicity to benoxaprofen. Eur J Rheumatol Inflamm. 1982;5(2):124–137. [PubMed] [Google Scholar]
  10. Mikulaschek W. M. Long-term safety of benoxaprofen. J Rheumatol Suppl. 1980;6:100–107. [PubMed] [Google Scholar]
  11. Sheldrake F. E., Webber J. M., Marsh B. D. A long-term assessment of flurbiprofen. Curr Med Res Opin. 1977;5(1):106–116. doi: 10.1185/03007997709108986. [DOI] [PubMed] [Google Scholar]
  12. Smith G. L., Goulbourn R. A., Burt R. A., Chatfield D. H. Preliminary studies of absorption and excretion of benoxaprofen in man. Br J Clin Pharmacol. 1977 Oct;4(5):585–590. doi: 10.1111/j.1365-2125.1977.tb00790.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Stewart I. C. Gastrointestinal haemorrhage and benoxaprofen. Br Med J (Clin Res Ed) 1982 Jan 16;284(6310):163–164. doi: 10.1136/bmj.284.6310.163-a. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Tyson V. C., Glynne A. A comparative study of benoxaprofen and ibuprofen in osteoarthritis in general practice. J Rheumatol Suppl. 1980;6:132–138. [PubMed] [Google Scholar]

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