Nerve damage, which can be caused by diabetes or nerve injuries Cardiac and blood vessel damage High blood pressure hypertension Obesity Stress, anxiety, and depression Alcohol and tobacco use Fatigue Prostate surgery Some prescription medicines <a href=http://vtopcial.com/>purchasing cialis online</a> Viagra , a brand-name ED drug created by Pfizer, is the original drug in the PDE5 inhibitor class of medications and is very effective in treating erectile dysfunction
