you can be very much confident of their drug as it has the ability to furnish great sexual experiences at least for about 5... moreyou can be very much confident of their drug as it has the ability to furnish great sexual experiences at least for about 5 to 6 hours on average. It has Sildenafil citrate, therefore, do not take some other medication with this pill as Sildenafil can may interact with other medication, Old people should take earlier medicine form specialist before having any drug.