Can You Take Hawthorn Berry and L-Arginine Together?

Dose or timing may matter

The short answer

Hawthorn is a vasodilator and cardiotonic agent that lowers blood pressure, while L-Arginine lowers BP via nitric oxide. The combination may produce additive hypotension.

How to arrange timing

Monitor blood pressure when combining. Both are well-established BP-lowering agents.

Reference

Reference noted for this combination: Tassell MC et al. Hawthorn in the treatment of cardiovascular disease. Pharmacogn Rev. 2010;4(7):32-41

Important context

Whether supplements suit you together also depends on dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.