Tadaflo 20 mg is a medication that contains Tadalafil as its active ingredient. Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor that is commonly used to treat erectile dysfunction (ED) in men, as well as benign prostatic hyperplasia (BPH). In some cases, it is also used to treat pulmonary arterial hypertension (PAH), a condition that involves high blood pressure in the arteries of the lungs.