Vidalista 2.5 mg contains tadalafil, which can lower blood pressure slightly. This effect happens because tadalafil relaxes the blood vessels to improve blood flow, which can reduce the pressure inside the arteries. How it affects blood pressure Mild drop in blood pressure: Most healthy men may experience a small decrease in blood pressure. Usually not dangerous: In many cases, the drop is mild and does not cause symptoms. Can be risky with certain medicines: The risk increases if you take nitrates (often used for chest pain) or some blood pressure medicines. Possible symptoms of low blood pressure If blood pressure drops too much, you may feel: Dizziness or lightheadedness Fainting Weakness Blurred vision Important warnings You should not take Vidalista 2.5 mg if you are using: Nitrates (e.g., nitroglycerin, isosorbide dinitrate) Some heart medicines or alpha-blockers (unless your doctor says it’s safe) Best advice If you have high blood pressure or heart disease, consult your doctor before using Vidalista. They may need to adjust your medication or monitor your blood pressure.