Male erectile dysfunction is treated with a drug called Fildena 100 Mg tablet. This medication contains sildenafil citrate. The purpose of this drug is to increase penile blood flow. This drug prolongs the erection during sexual activity. This drug is recommended for men who are at least eighteen years old. It takes around forty-five minutes for this medication to start working. It takes four to six hours for this medication to start working. This medication should only be taken once daily. Adhere to your doctor's instructions when using this medication. Take this medication without regard to cold drinks or heavy meals.