Tazzle 5 mg is used to treat erectile dysfunction in men . Tazzle 5 Tablet is a medicine used for the treatment of erectile dysfunction (a condition that occurs when a man has difficulty in getting and/or keeping an erection firm enough for sexual intercourse). It is also used to treat urinary symptoms caused due to an enlargement of the prostate gland (a walnut-sized gland located just below the bladder that secretes fluid to nourish and transport the sperm) in older men. Tazzle 5 Tablet works by relaxing the blood vessels in the penis, increasing the flow of blood to the penis. This medicine also relaxes the muscles present in the prostate gland and bladder thereby, improving the symptoms associated with an enlarged prostate gland. Tazzle 5 Tablets may cause side effects such as headache, back pain, muscle aches, pain in the arms and legs, facial flushing (redness of the skin of the face), nasal congestion, and indigestion. Most of these side effects are temporary and may subside with time. If any of these side effects persist or worsen, consult your doctor.