Can duofilm be used as genital wart remover?

Yes: Duofilm containing salicylic acid can be used for treating warts. Notify your physician if not improving. Genital wars, however, require a different treatment plan requiring a doctor's prescription.

Beware: I would strongly encouraged you to avoid over the counter wart removers, whether it be salicylic acid based or cold based when addressing genital warts. That area is quite sensitive and is best addressed by your primary care doctor or dermatologists. Remember you can do more harm than good trying to treat these at home.