Actor Gerard Butler, star of the film 300, apparently spent three weeks in rehab at the Betty Ford center due to substance abuse problems he developed from prescription medications. He is now out of rehab, and was photographed by TMZ relaxing. Butler blamed his problems with pain medication on an injury he sustained while working on the film OF MEN AND MAVERICKS back in December.

Unfortunately, some prescription pain killers have a high threshold to create an addiction potential. Doctors need to use extreme caution when they prescribe some medications if a substitute drug exists with a much lower addiction risk potential.

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