Description
Superman is described as a combination of sildenafil and tadalafil, the active ingredients in Viagra and Cialis. Both are PDE5 inhibitors that support erectile function by increasing blood flow to the penis during sexual stimulation. Sildenafil has a shorter duration of action, while tadalafil can remain effective for up to 36 hours. These are characteristics of the individual ingredients, rather than proven advantages of the combined product.
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