Is there a way to cancel notifications i send on facebook?

[☮]

I really want to cancel them and make sure my friends don't get it on facebook. Is there any way to do that?

[Ribéry]

I think so. Click on the bit where notifications come up in the bottom right hand corner, it should say something like 'you've sent a request to [person's name]" and underneath that it should say 'undo'. If you click that I think it stops them recieving the notification.

[Smith]

No if the notification is sent so you cannot cancel it.