This document provides guidance on the use of antenatal multiple micronutrient supplements (MMS) alongside the treatment of anemia in pregnant women. It is intended for national decision-makers, technical advisory groups, and program implementers who are considering or implementing programs to introduce MMS, especially the United Nations International Multiple Micronutrient Antenatal Preparation (UNIMMAP). This interim guidance is based on the expert opinion of the MMS Technical Advisory Group (TAG).