Avana 100 mg is a medication used primarily to treat erectile dysfunction (ED). It contains avanafil as its active ingredient. Avanafil is a phosphodiesterase type 5 (PDE5) inhibitor. It works by relaxing the blood vessels in the penis, which increases blood flow and helps achieve and maintain an erection during sexual stimulation. It does this by blocking the enzyme PDE5, which is responsible for the breakdown of cyclic guanosine monophosphate (cGMP), a substance that relaxes smooth muscles and dilates blood vessels.

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