Before starting off to take any tablet of the Pack you need to notify your medical professional about all disorders you can have: coronary heart problems, heart failure, coronary artery ailment, angina, high or lower blood stress and blood problems (sickle cell anemia or leukemia, extreme bleeding), liver or kidney failure, a tummy ulcer, suffer with retinitis pigmentosa, tumor of the bone marrow, Peyronie’s sickness (bodily deformity of the penis), or if you are taking an additional medication for treatment method of impotence.