Men with erectile dysfunction and impotence can be treated with Vidalista 40 Pills. Take this medication half an hour before sexual activity. Tadalafil is a component in this medication that helps men's penile tissues receive more blood flow. This medication can be used either before or after food. Consume this medication with water; do not crush or chew it. This medication has a 36-hour half-life. Follow your doctor's advice when taking this medication.