Vidalista Black 80mg is not safe for use by anyone who has liver disease, kidney disease, or a heart condition. It can cause a dangerous drop in blood pressure. Avoid taking it with nitrates or any other ED medication.
Vidalista 20 is also not safe for people who have had a stroke or heart attack. It can interact with nitrates to reduce the effectiveness of these medications. You should also talk to your doctor if you have liver disease or a history of heart disease.