Tadaga 5 mg, which contains Tadalafil, may interact with several medical conditions, making it important to consult a doctor before use. The top conditions that may cause complications include heart disease, especially if you're taking nitrates; low or high blood pressure; liver or kidney disorders, which affect drug metabolism; severe vision disorders like retinitis pigmentosa; and peptic ulcers or bleeding problems. Additionally, men with a history of stroke, heart attack, or uncontrolled arrhythmias should avoid using Tadaga without medical clearance. These conditions can increase the risk of serious side effects like hypotension, vision loss, or cardiovascular events.