Men with erectile dysfunction can use the drug Fildena 100 Purple Pill. It includes the phosphodiesterase type 5 inhibitor sildenafil citrate. The active component of Fildena helps men get and keep an erection by boosting blood flow to the penis during sexual stimulation. Its effects might last for around 4 to 6 hours, and it is typically taken 30 minutes to 1 hour prior to sexual activity. You can keep Fildena 100 in a secure, locked container. For the most part, Fildena 100 works well for males in the 18–64 age range. Eating a large meal may cause the medication to take longer to start working.