Zenegra 100 mg is typically taken as needed, approximately 30 minutes to one hour before sexual activity. It can remain effective for up to four hours, allowing for a window of time during which sexual activity can occur. Zenegra 100 mg is generally effective in helping men with ED achieve and maintain erections when sexually stimulated. It's important to note that sexual arousal is still necessary for the medication to work. Zenegra 100 mg does not increase libido or sexual desire.

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