Drug General Information (ID: DDIBKZNLS1)
Drug Name			Propranolol		Drug Info		Hydralazine		Drug Info
Drug Type		Small molecule				Small molecule
Therapeutic Class		Antianxiety Agents				Antihypertensive Agents
Structure

Mechanism of Propranolol-Hydralazine Interaction (Severity Level: Minor)
Interference with first-pass metabolism Click to Show/Hide Mechanism Graph
Drug Name		Propranolol				Hydralazine
Mechanism		Extensive first-pass metabolism				Reduced hepatic blood flow
Key Mechanism Factor 1
		Factor Name		First-pass metabolism
		Factor Description		First-pass metabolism is a drug metabolism phenomenon in which the concentration of a drug, especially when administered orally, is greatly reduced before it reaches the systemic circulation. Interfering with the first-pass metabolism of a drug may affect the total amount of drug reaching the systemic circulation.
Mechanism Description		Decreased metabolism of Propranolol caused by Hydralazine mediated interference with first-pass metabolism

References
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