just to further what I'm talking about......
However, once a drug has been approved for sale for one purpose, physicians are free to
prescribe it for any other purpose that in their professional judgment is both safe and effective, and are not limited to official, FDA-approved indications. This off-label prescribing is most commonly done with older, generic medications that have found new uses but have not had the formal (and often costly) applications and studies required by the FDA to formally approve the drug for these new indications. However, there is usually extensive medical literature to support the off-label use.
Off-label use of medications is very common. Up to one-fifth of all drugs are prescribed off label and amongst psychiatric drugs, off-label use rises to 31 %.
[5] New drugs are often not tested for safety and efficacy specifically in children. Therefore, it is believed that 50-75% of all medications prescribed by pediatricians in the U.S. are for off-label indications.
[6]
A study published in 2006 found that off-label use was the most common in cardiac medications and anticonvulsants. This study also found that 73% of off-label use had little or no scientific support
seems like dr.s know alot of nothing, and prescribe blindly as they see fit; though I will agree that the UK is a bit better with their pharm. controls.