(in prescriptions) as much as is desired.
Origin of q.l.
From the Latin word quantum libet
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abbreviation for (in prescriptions)
Word Origin for q.l.
Latin: as much as you please
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
quantum libet (as much as desired)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.