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When there is angina or heart failure, the doctor may need to determine whether the heart has enough reserve to safely carry out the work necessary for sexual activity by performing cardiac treadmill stress testing. Cigarette smoking: Cigarette smoking aggravates atherosclerosis and thereby increases the risk for erectile dysfunction. medicaments to buy buy viagra Online a drugstore - you can always buy viagra from us best price viagra viagra for sale viagra online The following are treatments for erectile dysfunction: Working with doctors to select medications that do not impair erectile function Making life style improvements (for example, quitting smoking and exercising more), Taking drugs to treat ED such as sildenafil (Viagra), vardenafil (Levitra) or tadalafil (Cialis), Inserting medications into the urethra (intraurethral suppositories), Injecting medications into the corpora cavernosae (intracavernosal injections)