Tadalafil Femalefil, marketed as Cialis for men, is sometimes used off-label for women, although it is not FDA-approved for female use. Femalefil is a brand that contains tadalafil and is marketed in some regions specifically for women. Tadalafil may have potential benefits for women’s sexual function, including increased sexual arousal and satisfaction, although research in this area is limited. Since tadalafil is not officially approved for women, its safety and efficacy in females are not well-established. There may be risks or side effects that are not fully understood. Common side effects in men, such as headaches, flushing, and digestive issues, could also occur in women.