Drug General Information (ID: DDI36WIR4B)
Drug Name			Calcium Phosphate		Drug Info		Baloxavir marboxil		Drug Info
Drug Type		Small molecule				Small molecule
Therapeutic Class		Minerals And Electrolytes/Phosphate Binders				Antiviral Agents
Structure

Mechanism of Calcium Phosphate-Baloxavir marboxil Interaction (Severity Level: Moderate)
Complex formation Click to Show/Hide Mechanism Graph
Drug Name		Calcium Phosphate				Baloxavir marboxil
Mechanism		Polyvalent cations				Binds to polyvalent cations
Key Mechanism Factor 1
		Factor Name		Chelation
		Factor Description		Chelation is a direct drug interaction that usually involves the formation of dimers or trimers, resulting in larger complexes and poorer absorption.
Mechanism Description		Decreased absorption of Calcium Phosphate due to formation of complexes caused by Baloxavir marboxil

Recommended Action
Management		Concurrent administration of baloxavir marboxil with polyvalent cation-containing laxatives, antacids, or oral supplements (e.g., aluminum, calcium, iron, magnesium, selenium, zinc) should generally be avoided.

References
1	Cerner Multum, Inc. "Australian Product Information.".
2	Product Information. Xofluza (baloxavir marboxil). Genentech, South San Francisco, CA.