Viagra (also known as sildenafil), Levitra (also known as vardenafil) and Cialis (also known as tadalafil)
Viagra (also known as sildenafil), Levitra (also known as vardenafil) and Cialis (also known as tadalafil)
The medications that you mention are not natural herbs. None of the three can be purchased over the counter, though there are a few natural herbs that are thought to be beneficial for erectile dysfunction. Discuss with an expert whether these herbal products could be helpful to you, as herbal products often interact with prescription medications that you may be taking.
Best of luck,
Casey
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