Tadalista Professional is a brand/product name used for a tadalafil-based medicine marketed for erectile dysfunction (ED). The exact strength and formulation can vary by product, so check the package for the active ingredient and dose. If it contains tadalafil, it works by inhibiting PDE5, helping increase penile blood flow when ***** stimulation occurs. Key points: It does not automatically cause an erection without ***** stimulation. Do not combine tadalafil with nitrate medicines because blood pressure can fall dangerously. Common side effects include headache, flushing, indigestion, nasal congestion, back pain, and muscle aches. Avoid taking additional tadalafil-containing ED medicines at the same time unless a clinician specifically advises it. A healthcare professional can determine whether the particular strength is appropriate based on your medicines and health conditions.