Sildenafil citrate in fildena 200 inhibits phosphodiesterase type 5 (PDE5) to improve erectile function. It relaxes penile blood vessels, boosting blood flow and allowing a harder, longer-lasting erection when sexually stimulated. This increased blood circulation helps men attain and maintain satisfying erections by counteracting physiological causes causing ED. Fildena 200 works best with sexual stimulation and should be taken under medical supervision due to negative effects and drug interactions. Visit online medicine shop for more updates.