Tadfil 20 mg contains tadalafil, a medication used to treat erectile dysfunction by increasing blood flow to the penis. To ensure safe use and avoid complications, it is important to follow certain safety precautions. First, consult your healthcare provider before starting Tadfil, especially if you have heart disease, high or low blood pressure, liver or kidney problems, or a history of stroke. Inform your doctor about any other medications or supplements you are taking, as Tadfil can interact with drugs like nitrates, alpha-blockers, or certain antifungals and antibiotics.