Acyclovir precipitation

PLEASE NOTE:   Posts made to this forum should not be considered as the expressed opinions of, nor should be considered endorsed by, the Medication Safety Officer’s Society (MSOS) or the Institute for Safe Medication Practices (ISMP). 

Make sure your email is up-to-date
In order to continue to receive updates from MSOS, as well as forum posts and other valuable information as a member of MSOS, please be sure to update your email address with us, whenever it changes. If you need assistance doing so, please send an email to

1 post / 0 new
Laurie Willhite
Laurie Willhite's picture
Last seen: 7 months 2 weeks ago
Joined: 11/30/2020 - 09:11
Acyclovir precipitation

We had two incidences of IV acyclovir 7 mg/ml precipitation in IV tubing. We investigated temp, concentration, and the possibility of a TPN/acyclovir Y site issue with no results. Any thoughts?