Rocker Ozzy Osbourne asks his assistant to dish out his sedative medication because he is scared he will abuse it.

The BLACK SABBATH star, who has a well-publicised history of drink and drug abuse, takes tablets daily to treat Parkins Syndrome, a condition which causes his hands to shake.

He says, "Sometimes I slip up. I'll have one too many sedative pills.

"I'll try to give my medication to my assistant so that he'll give them to me in the right amount, because otherwise I'll end up messing around with them."