UpToDate Lexidrug. (date of last update). Title of entry. UpToDate Lexidrug. Retrieved date, from web address.
Example:
UpToDate Lexidrug. (2024). Insulin regular. UpToDate Lexidrug. Retrieved September 30, 2024. http://online.lexi.com/lco/action/doc/retrieve/docid/patch_f/320101?cesid=8s7exVZdSWp&searchUrl=%2Flco%2Faction%2Fsearch%3Fq%3Dinsulin%26t%3Dname%26acs%3Dfalse%26acq%3Dinsulin
Davis's Drug Guide for Nurses (18th ed.) by