Information from Briggs' Drugs in Pregnancy & Lactation, one of the most reputable resources on drug use in pregnant and lactating women, can be found in Lexi-Comp and Facts & Comparisons.
Resources for locating Clinical Practice Guidelines:
Email Butler University Libraries
Irwin Library: 317-940-9227
Science Library: 317-940-9937
CAT: 317-940-8575