Fildena Double 200 mg is a medication designed to treat erectile dysfunction (ED) in men. It contains a higher dosage of sildenafil citrate, which is the same active ingredient found in other Fildena products and in the FDA-approved medication Viagra. Sildenafil citrate works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This inhibition leads to increased levels of cyclic guanosine monophosphate (cGMP), resulting in the relaxation of smooth muscles and dilation of blood vessels in the penis.

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