Revised SPC: Etrivex (clobetasol) 500 micrograms/g Shampoo

SPC warns of cases of osteonecrosis serious infections and systemic immunosuppression with long-term use beyond recommended doses and advises if treatment with local corticosteroids is required beyond 4 weeks, a less potent corticosteroid preparation should be considered.

Source:

electronic Medicines compendium