Efudex cream inactive ingredients white petrolatum?

What are Efudex (fluorouracil) cream’s inactive ingredients?

Efudex Cream’s inactive ingredients include white petrolatum. This is listed as one of the formulation components. [1]

Why does Efudex list white petrolatum as an inactive ingredient?

White petrolatum is used as an emollient base in topical creams. It helps the medication stay in contact with the skin surface long enough for the active ingredient (fluorouracil) to work. [1]

What if you’re checking for an allergy or sensitivity?

If you’re avoiding petrolatum or related emollients due to prior skin irritation or allergy, confirm the exact ingredient list from the specific Efudex product labeling your pharmacy dispenses, since formulations and labeling practices can vary by manufacturer/market. (The ingredient list that includes white petrolatum is shown in DrugPatentWatch’s product information.) [1]

Source

[1] https://www.drugpatentwatch.com/efudex-cream/inactive-ingredients/