Vidalista 40 is usually taken about 30 to 60 minutes before sexual activity. Best timing 30–60 minutes before intercourse is the standard window Some people may notice effects as early as 20–30 minutes Because it contains tadalafil, it has a long duration (up to 24–36 hours), so Vidalista 40 is more flexible than many other ED medicines Key points for best effect Works best when taken on a relatively empty stomach or after a light meal Requires sexual stimulation to work You do not need to precisely time intercourse, since it stays active for a long time Important caution Vidalista 40 is a high-strength dose, so it should only be used if prescribed. Avoid taking more than one dose in 24–36 hours, and do not combine it with nitrate heart medicines or excessive alcohol due to risk of low blood pressure. If you want, I can also explain how 40 mg compares with 20 mg or 60 mg in terms of strength and side effects.