Short answer: L-Arginine and L-Citrulline both affect blood vessel relaxation — the same pathway several blood pressure medications act on, which makes a doctor's check essential before combining them.
Why this specific combination matters
Nitric-oxide precursors relax and widen blood vessels. Blood pressure medication often works through the same or an overlapping pathway — the effects can compound rather than simply add together.
What "compounding" can mean in practice
Combining two substances that both relax blood vessels can lower blood pressure more than either alone would — potentially producing dizziness, lightheadedness, or more significant effects in sensitive individuals.
⚠️ Worth knowing: anyone on blood pressure medication, nitrates, or managing a cardiovascular condition should consult a doctor before use, since these ingredients can affect blood vessel function.
What to bring to that conversation
- The full ingredient list of the supplement you're considering
- Your specific blood pressure medication and dosage
- Any history of blood pressure sensitivity
Review CardioC2's full safety notes
Clear medication cautions, stated plainly.
Read the Safety Guide90-day money-back guarantee