Filitra works by relaxing the blood vessels in the penile area, allowing improved circulation when a person is sexually aroused. It does not produce an erection automatically—sexual stimulation is necessary for the drug to work. The medication is usually taken about 30–60 minutes before sexual activity. It is available in different strengths, such as 10 mg, 20 mg, 40 mg, and higher doses like 60 mg. A doctor decides the appropriate dosage based on your health condition and response to treatment. https://www.genericday.com/filitra-20-mg.html