LOSUCON 3 MG is a sustained-release tablet containing 3 milligrams of doxazosin mesylate. Doxazosin is an alpha-1 adrenergic receptor blocker primarily used to treat hypertension (high blood pressure) and benign prostatic hyperplasia (BPH), a condition where the prostate gland 1 is enlarged and can cause urinary problems in men. By blocking alpha-1 receptors, doxazosin helps to relax blood vessels, leading to lower blood pressure, and also relaxes the muscles in the prostate and bladder neck, making it easier to urinate. 2 The sustained-release formulation is designed to release the medication slowly over time, allowing for once-daily dosing and providing a more consistent effect.