I did stop, after insisting that my cardiologist prescribe it for me after cacking from an aortic dissection...(at an early age I might add, 3 years ago) for my girl friend at the time thought it would be advantageous. Well, she/I came to realize that she was more of an asset, after changing her "crank turning" than the viagra was, so I gave the prescription to my 88 year old father after receiving his request for it! ; )