Oscar Pistorius' PR firm said the substance found in his bedroom is Testis compositum, which aids "muscle recovery", according to the Associated Press.
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He says it has taken him several years to be happy with the album.
The 35-year-old has been brought back to replace Ivy Grace who had to pull out of the competition.
Outbreaks of rain will continue to spread northeastwards, turning most persistent and heavy in the southwest