generika viagra (https://www.europe-pharm.com/cz/genericka-viagra) is rapidly absorbed from the gastrointestinal tract (bioavailability about 40%), reaching the maximum concentration in the blood after about 1 hour. It is 96% bound to plasma proteins. It is metabolized in the liver and excreted mainly in the faeces (about 80%) as metabolites, and to a lesser extent (about 13%) - in the urine.