Vidalista pills is a medication that is used to treat erectile dysfunction in men. The drug should be stored at room temperature in a closed container away from heat sources, moisture, and direct sunlight. Tadalafil treats erectile dysfunction in men. It belongs to the group of drugs called phosphodiesterase 5 inhibitors. These drugs cause phosphodiesterase type-5 to stop working too soon. The penis is one area where this enzyme is active. Usually, this medicine treats erectile dysfunction within 30 to 60 minutes. Headache, dizziness, upset stomach, and flushing are common Vidalista adverse effects. It usually loses some of its potency after two hours, but it can last up to 36 hours.