Sildenafil citrate is the main ingredient in Fildena 100, which is a PDE-5 inhibitor medicine. Sildenafil is what makes the Fildena double 200 capsules work, and sildenafil needs sexual stimulation to work. Fildena is like Viagra and is in the same class of pills as Viagra. The Fildena brand name is used for a group of medicines made in India by Fortune Healthcare.
For further information, go to The USA Meds.