6545
It has been prescribed as a treatment for erectile dysfunction , but its reported clinical benefits were modest and it has largely been superseded by the PDE5 inhibitor class of drugs .
 disease: erectile dysfunction
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 disease: erectile dysfunction