For male impotence, you can use Vidalista black 80mg medicine. The effect of this medicine lasts for 4 to 6 hours. This medicine should be taken once in 24 hours. This medicine should be taken once in 24 hours. Because with a higher dosage, you will get side effects. The active ingredient of this medicine is sildenafil citrate, which is very useful to end this problem. It improves blood flow to the blood vessels of the penis and relaxes the blood vessels. But if you have an illness like a heart attack or stroke, you need to consult a doctor first. You can easily buy this medicine online at pharmev.com. This is a trusted site and here you will get pills at a reasonable price with discounts.