For men with erectile dysfunction and impotence, this medication is helpful. sildenafil, an ingredient in the medication, helps men's penile tissue receive more blood flow and relaxes their muscles. Take this medication half an hour prior to sexual activity so that you can enjoy quality time with your partner. Fildena 100 vs Viagra Reviews are displayed from our store. This medication can be taken either before or after food. Avoid taking this medication with cold or fatty foods as they will lessen its effectiveness.