Lack of information
You may be asked to give advice when there is
simply no information, or very little information, on which to base your answer. Consider
the following situation;

Have a think about where you might look for the information before reading the next paragraph.
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So, you begin to look for information. You check the manufacturer’s SmPC, the Renal Drug Database, Bazire’s Psychotropic Drug Directory, and the Maudsley Prescribing Guidelines in the first instance. But you find no relevant information. You then undertake a Medline and Embase search for published experience of using trihexyphenidyl in patients on haemodialysis and don’t identify any useful papers.
What should you
do now? Take time to think about this before clicking onto the next page to read our
thoughts.