Tadalafil, commonly known by the brand name Cialis, is a widely used prescription medication for erectile dysfunction (ED), benign prostatic hyperplasia (BPH), and occasionally pulmonary hypertension. Celebrated for its long-lasting effectiveness, it has improved the quality of life for millions of men globally. However, Tadalafil is not suitable for everyone. Individuals with certain heart conditions, low blood pressure, liver or kidney disease, or those taking nitrates or other ED medications should avoid it without medical supervision. Safe use of Tadalafil begins with an open, informed discussion with a qualified healthcare provider.