Erectile dysfunction is a very common medical condition that affects men of all backgrounds and ages around the world. They may have trouble sustaining or even achieving an erection during sexual intercourse. A very popular remedy is the medication manufactured by the pharmaceutical company, Pfizer. Viagra is a small pill available in 25mg, 50mg and 100mg doses that is taken orally. Many men prefer this drug because it works so quickly. If you are planning a night of lovemaking with your partner, you want to be able to perform. Fortunately, Viagra can work approximately 30 minutes after taking it, and some me see results in as little as 15 minutes! Make sure you don’t take Viagra right after eating a meal that is high in fat, or the Viagra will take longer to work. It is recommended that you take the drug approximately 30 to 60 minutes before engaging in sexual intercourse for optimal results.