Cidofovir er kontraindiceret til patienter, der ikke kan behandles med probenecid pga. klinisk signifikant overfølsomhed overfor det aktive stof eller overfor andre sulfapræparater.
Cidofovir administration is contraindicated in patients unable to receive probenecid because of a clinically significant hypersensitivity to the active substance or medicinal product or to other sulfa- containing medicines.