Most public libraries in the US carry the PDR. Also, pharmacies have the
same info in the individual spec sheets that come in the packaging with the
medications. These are easier to photocopy, and also the pharmacy gets so
many of them that they may be willing to hand them out. If you really want
a PDR of your own, you might be able to find a prior year's volume
available at one of the discount book stores.
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Mark Feblowitz