Vidalista Professional will be the most effective in treating impotence, but you must take it for the entire period of the medication or with the recommendation of a doctor. According to the doctor, you should take this medication once a day with 1 glass of water. You can take this medicine with or without meals, although without food it will be more effective. However, you should avoid eating foods heavy in fat because the effect will be diminished. You should not combine this medication with alcohol or grape juice. As a result, the drug's effectiveness will decline.