However there has been no large randomized clinical trial to assess the safety of l citrulline for ed.
													
																	Gnc l arginine l citrulline side effects. 
									
	
		
	
																	Higher levels of l citrulline in the blood. 
																	L citrulline is believed to be safe as studies haven t yet found any known side effects. 
																	Although not all of these side effects may occur if they do occur they may need medical attention. 
																	Gnc l arginine and l citrulline is an amino acid dietary supplement that can fuel nitric oxide production. 
															
													
									
	
		
	
																	Side effects requiring immediate medical attention. 
																	Along with its needed effects arginine the active ingredient contained in l arginine may cause some unwanted effects. 
																	Taking l citrulline by mouth seems to improve sexual function in some men with erectile dysfunction. 
																	High blood pressure in arteries in the lungs after surgery postoperative pulmonary hypertension.