The length depends on the substance. The effects of Vidalista start to take effect after around 30 minutes and last for roughly 4 hours. Vidalista should be taken at least 2 hours prior to your intended sexual activity. After taking it, the effects could last for up to 36 hours. You’ll want to take every precaution to ensure that a prescription medication for erectile dysfunction (ED) is working properly if you take one. Spend a few minutes learning how to utilize your drug to the fullest. Later on, it will pay off in the bedroom.