Tadalafil Femalefil is a medication typically used to treat sexual arousal disorders in women. It contains tadalafil, which is the same active ingredient found in medications for erectile dysfunction in men. Tadalafil Femalefil is generally taken before sexual activity. It can be effective when taken about 30 minutes to an hour prior to intercourse. It's typically not recommended to take it more than once a day. Follow your healthcare provider's instructions regarding frequency.