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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
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This list is incomplete. It is strongly recommended that clinicians consult the websites of the American Porphyria Foundation (www.porphyriafoundation.com) and the European Porphyria Network (EPNET: www.porphyria-europe.com), which are frequently updated; list many other drugs, including those that are not classified with certainty; and provide evidence for these classifications. Refer to the UpToDate topics on individual porphyrias for more information on clinical manifestations. * In US labeling for these drugs, porphyria is listed as a contraindication, warning, precaution, or adverse effect. Erythropoietin and ranitidine are regarded as safe by other sources. Estrogens are unsafe for porphyria cutanea tarda, but can be used with caution in the acute porphyrias, especially in low doses or by the transdermal route. Adapted from: Anderson KE, Bloomer JR, Bonkovsky HL, et al. Recommendations for the diagnosis and treatment of the acute porphyrias. Ann Intern Med 2005; 142:439.