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Melonex and Nitrates: Why This Mix Needs a Pharmacist Check
If you take a nitrate medicine for chest pain, talk to a pharmacist or doctor before any Melonex capsule. Mayo Clinic and the Cleveland Clinic both name nitrates as an interaction with arginine, one of the three names on the label, and Mayo says blood pressure may drop too low. No source tested Melonex with nitrates.
Written by the Melonex label deskUpdated · 4 min read

Why are nitrates singled out?
Because both a nitrate and arginine are linked to widened blood vessels. Mayo Clinic says the pair can leave blood pressure too low 1.
The Cleveland Clinic names nitrates too, in a list that adds alpha-blockers, beta-blockers and calcium channel blockers 2. Two independent sources point at the same class. That is enough for us to say: ask first.
Who takes nitrates?
Nitrate medicines are prescribed for chest pain from the heart. If you carry a tablet or spray for that, you likely take one.
| Question | If yes |
|---|---|
| I use a nitrate for chest pain | Ask a pharmacist before any Melonex capsule. |
| I take other blood pressure pills too | Mention them all in the same visit. |
| I had a recent heart attack | Mayo says arginine is not recommended; talk to your cardiologist 1. |
| I take none of these | Still ask if you have any medical condition, as the label says. |
Only your prescriber knows why you were given a nitrate. A web page does not.
What does the label give you to work with?
A short caution and a blend with no printed amounts. That is all the maker offers a pharmacist.
500 mgone Proprietary Blend per capsule, amounts of the three names not printed
Proprietary Blend 500 mg- L-Citrulline DL-Malate167 to 500 mg
- L-Arginine alpha-ketoglutarateup to 250 mg
- L-Arginine HClup to 167 mg
Bars show the widest range the label order allows for each name 3. The real split is not printed.
The bar shows the range each name could take inside the 500 mg. Because the amounts are not printed, nobody can point to a dose of arginine and compare it to a study. See the ingredients page.

Melonex: from $49 a bottle60 capsules · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day money-back guarantee
See packsWhat would be a reason to get help quickly?
Chest pain, fainting or signs of stroke mean 911, not a search engine 4.
Call a clinician soon
Lightheadedness when you stand, a pounding head or a new spell of dizziness after starting something new.
Call 911
Chest pressure, spreading pain, trouble breathing, face drooping, arm weakness or slurred speech.
Keep taking prescribed medicine, and do not hold back a nitrate dose to make room for a supplement.
What should you do before ordering?
Ask the pharmacist, then decide. There is no deadline on a bottle that lasts 60 days.
If the answer is that this is not for you, you lost nothing by asking. If it is fine, start with the label dose and keep a note of how you feel. The guarantee asks for at least 30 days of continuous use, so confirm the live policy before you buy a larger kit. The checkout fetch we read did not print the formula, so no ingredient amounts are claimed.

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Order 6 bottlesPrices on the Melonex sales page, October 30, 2026 5. Two bottles are also sold for $158, plus $9.99 shipping. Check your medicines with your doctor or pharmacist before you order.
FAQ01
Melonex questions people ask
What is a nitrate in this context?
A prescription medicine, often taken for chest pain from the heart. It is not the nitrate found in vegetables.
Do beet or leafy greens count as nitrates for this warning?
The sources we read speak of nitrate medicines. Ask a pharmacist about foods too.
Is the Cleveland Clinic list the same as Mayo's?
Not exactly. Both name nitrates, but each lists other classes the other leaves out.
Has Melonex been tested with a nitrate drug?
No test was found. Treat the class warning as a reason to ask, not as a result for Melonex.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a USA Authorized Melonex Retailer. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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