If Vidalista 80 mg is not working effectively, several factors could be responsible. First, insufficient sexual stimulation may be an issue, as the medication requires arousal to work. Food and alcohol intake can also impact its effectiveness—heavy meals, particularly those high in fat, may delay absorption. Excessive alcohol consumption can reduce blood flow, making the drug less effective. Underlying health conditions like diabetes, high blood pressure, or psychological stress can also contribute to poor results. Lastly, incorrect dosage or tolerance buildup over time might require an adjustment. Consulting a doctor can help determine the best approach for optimal results.