Men with erectile dysfunction take Vidalista Professional. Tadalafil, a component in this medication, aids in boosting blood flow to the tissues of the penis in males. Take this medication half an hour prior to sexual activity so that you can enjoy quality time with your companion. This medication can be used either before or after meals. This medication takes four to six hours to take effect. Take this medication as directed by your physician. Only men between the ages of 18 and 65 may take this drug.