10 Pityriasis Rosea Facts
Fact #6: May Be Drug-Induced
There are many drugs that have been associated with pityriasis rosea-like eruptions. These include barbiturates, acetylsalicylic acid, bismuth, clonidine, captopril, imatinib, isotretinoin, clozapine, rituximab, and nortriptyline. Pityriasis-like eruptions have also been associated with vaccines such as human papilloma virus vaccine, diphtheria vaccine, and bacilli Calmette-Guerin vaccine.
Pityriasis rosea-like eruptions can be difficult to differentiate from nondrug-induced cases. One good indication is that drug-induced pityriasis usually lasts longer than nondrug-induced pityriasis rosea. Lesions are also thought to be increased among individuals who have high stress levels.
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