Fildena 120 mg (which contains sildenafil citrate, the same active ingredient in Viagra) will not work effectively without sexual stimulation. Sildenafil works by increasing blood flow to the penis, but it requires sexual arousal or stimulation to activate the process. Here’s how it works: Mechanism of action: Sildenafil (in Fildena 120 mg) inhibits the enzyme phosphodiesterase type 5 (PDE5), which allows the blood vessels in the penis to Fildena 120 mg and dilate, improving blood flow. However, this effect is only triggered in response to sexual stimulation. Sexual stimulation: In the absence of sexual arousal, sildenafil will not cause an erection on its own. It enhances the body’s natural response to sexual stimulation, but it does not induce arousal or sexual desire. So, while Fildena 120 mg can be effective in treating erectile dysfunction, it requires the user to be sexually aroused for the medication to work. It does not create an erection without sexual activity or stimulation.