Phenacetin has 2 known drug interactions based on U.S. FDA drug labeling data. 2 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Dapsone, Dapsone Gel, 5%. Patients taking Phenacetin should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.

Total: 2
Major: 2

Major (2)

Phenacetin + Dapsone— Induces methemoglobinemia; concomitant use may increase risk for developing methemoglobinemia.
Phenacetin + Dapsone Gel, 5%— Concomitant use may increase risk of developing methemoglobinemia. Monitor closely.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.