All medications have some side effects. Even ones that have been in use for the last century.
		
		
	 
Definitely - I'm on 
rat poison to control my coagulation/bleeding time***!
Okay, they don't use warfarin on rats any more (they got used to it, or rather, the ones that 
didn't died!) but they 
used to use it as rat poison***.
*** A junior hospital doctor took me off it for a couple of days because he thought it would interfere with some tests that he was doing. A consultant did his rounds and stared at my notes. He looked up and in his best James Robertson Justice voice roared - 
WHO TOOK COLIN OFF THE RAT POISON!!!