Filitra, which contains Vardenafil as its active ingredient, is known for having a relatively rapid onset of action compared to some other erectile dysfunction medications. Here are some key points regarding its onset of action:

Onset of Action: Filitra typically starts to work within approximately 30 to 60 minutes after ingestion. This is relatively fast compared to some other medications in the same class, such as Tadalafil (Cialis), which may take longer to reach peak effectiveness.

Duration of Action: The effects of Filitra can last for about 4 to 5 hours, during which time sexual stimulation can lead to erections. This duration provides a reasonable window of opportunity for sexual activity.

Factors Affecting Onset: The onset of action may vary among individuals based on factors such as metabolism, overall health, and whether Filitra is taken with or without food. Taking the medication on an empty stomach may result in faster absorption and onset of action.

Effectiveness: Like other PDE5 inhibitors, Filitra works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain erections. It does not cause spontaneous erections and requires sexual arousal to be effective.