Long-term administration of low-dose phosphodiesterase type 5 inhibitors for erectile dysfunction: an update.
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Rui JIANG
			        		
			        		
			        		
			        			1
			        			,
			        		
			        			2
			        			
			        		
			        		
			        		
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Urology, The Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan 646000, China. jiangrui@
			        		
			        			2. com
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Journal Article
 
        	
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Erectile Dysfunction;
				        		
			        		
				        		
					        		drug therapy;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Male;
				        		
			        		
				        		
					        		Phosphodiesterase 5 Inhibitors;
				        		
			        		
				        		
					        		administration & dosage;
				        		
			        		
				        		
					        		therapeutic use;
				        		
			        		
				        		
					        		Treatment Outcome
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:
	            		
	            			National Journal of Andrology
	            		
	            		 2013;19(3):195-198
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Erectile dysfunction (ED) is a common disorder that affects the quality of life of both men and their partners. The phosphodiesterase type 5 inhibitor is the first-line drug for ED. Recent researches found that long-term administration of low-dose phosphodiesterase type 5 inhibitors to be a safe and effective therapy for ED, as well as for couples who may prefer more convenience and spontaneity in their sexual activities. Besides, it provides a new therapeutic option for refractory ED. Its action mechanism mainly involves the improvement of the endothelial function of penile vessels and/or maintenance of the function and number of smooth muscle cells. However, whether this therapy can maintain the improved erection function after drug withdrawal needs further studies.