Vidalista 40mg is a member of the group of drugs known as phosphodiesterase type 5 (PDE5) inhibitors. Tadalafil, its active component, promotes an erection by relaxing the penile blood vessels, which increases blood flow. Vidalista 40 has a longer duration of action, up to 36 hours, in contrast to other drugs in its class. Because of its prolonged period of efficacy, it has been dubbed "the weekend pill."
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