Drug General Information (ID: DDIUEKBGW3)
Drug Name			Dofetilide		Drug Info		Mesoridazine		Drug Info
Drug Type		Small molecule				Small molecule
Therapeutic Class		Antiarrhythmic Agents				Antipsychotic Agents
Structure

Mechanism of Dofetilide-Mesoridazine Interaction (Severity Level: Major)
Increased risk of prolong QT interval Click to Show/Hide Mechanism Graph
Drug Name		Dofetilide				Mesoridazine
Mechanism		Prolong QT interval				Prolong QT interval
Key Mechanism Factor 1
		Factor Name		QT interval
		Factor Description		Long QT syndrome is a heart signaling disorder that can cause a fast, chaotic heartbeat (arrhythmia). Many people may not exhibit symptoms, and usually the condition is detected during routine medical tests. In others, the most common symptoms include: sudden fainting, palpitations, dizziness, seizures, sudden death.
Mechanism Description		Increased risk of prolong QT interval by the combination of Dofetilide and Mesoridazine

Recommended Action
Management		Coadministration of mesoridazine with other drugs that can prolong the QT interval is considered contraindicated.

References
1	Canadian Pharmacists Association.
2	Cerner Multum, Inc. "Australian Product Information.".
3	Cerner Multum, Inc. "UK Summary of Product Characteristics.".
4	Product Information. Serentil (mesoridazine) Boehringer-Ingelheim, Ridgefield, CT.
5	EMA. European Medicines Agency. European Union "EMA - List of medicines under additional monitoring.".