Vidalista, sometimes spelled Fiercea or Fierce and sometimes Fierce is the brand name of Viagra - a drug that has revolutionized sex lives for millions of men around the world. This drug is prescribed by doctors to men who suffer from impotence or low sexual desire. Viagra can be taken without the prescription of a doctor or one must get a prescription for it. However, there are some myths surrounding the drug that need to be dispelled before you can fully accept Viagra as a helpful aid in your sexual life.