Manforce 100 mg is highly effective in treating erectile dysfunction. The medication begins to work within 30 to 60 minutes of ingestion, and its effects can last for 4 to 6 hours. The ability to maintain an erection depends on sexual arousal, as the medication does not induce an erection on its own. This provides men with a window of opportunity to engage in sexual activity without the pressure of having to plan exactly when to take the medication.