Filitra is another medication used to treat erectile dysfunction (ED), and its active ingredient is Vardenafil, just like Vilitra. Treat erectile dysfunction by improving blood flow to the penis. How it works It blocks the PDE5 enzyme, which helps relax blood vessels and increase blood flow. Onset: Usually works within 30 to 60 minutes. Duration: Effects last around How to take: Take about an hour before sexual activity; do not take more than once a day.
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