Documented concern based on cited evidence — not a personalized safety check, not medical advice, and not a decision to combine or avoid. That decision belongs with your prescriber.
Documented concern — monitor and disclose
Clinically relevant documented concern. Disclose the supplement to your clinician and keep monitoring in place.
Mechanism and evidence
Arginine is the direct NO substrate; with nitrates the vasodilatory load stacks, and arginine infusions are known to lower blood pressure on their own.
Evidence tier: meta-pharmacology
The tier names the strongest cited study design. Some anchors studied the supplement on its own, or a related drug in the same class — in those pairs the grade rests on that evidence plus established pharmacology, as agreed with our medical reviewer.
What to discuss with your prescriber
- Same caution as citrulline with nitrates: cardiologist decision, blood pressure monitoring.
- Treat lightheadedness as a signal to stop and call.
← All reviewed pairs for Nitrates (nitroglycerin, isosorbide mono/dinitrate)