Tadalafil is a well-known medication commonly used to treat erectile dysfunction (ED) in men and also for other conditions like benign prostatic hyperplasia (BPH) and pulmonary arterial hypertension (PAH). It works by increasing blood flow to certain areas of the body, which helps to achieve and maintain an erection when sexually aroused. Tadalafil Femalefil is a brand name for a medication that contains tadalafil and is marketed as a treatment for sexual dysfunction in women, though it's not universally approved or available in all countries. It is often promoted as an option to improve sexual arousal and satisfaction in women.