Astemizole has 3 known drug interactions based on U.S. FDA drug labeling data. 1 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Erythromycin Lactobionate, Dermatophagoides Farinae, Histamine Phosphate. Patients taking Astemizole should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 3
- Major
- 1
- Moderate
- 2
Major (1)
- Astemizole + Erythromycin Lactobionate— Erythromycin significantly alters metabolism of this nonsedating antihistamine; rare serious cardiovascular adverse even…
Moderate (2)
- Astemizole + Dermatophagoides Farinae— Antihistamine that suppresses histamine skin test reactions. Requires 30-60 days interval between allergenic extract exp…
- Astemizole + Histamine Phosphate— Antihistamine that suppresses response to histamine. Duration of suppression can be as long as 40 days.