Methylene blue or NAD+? Same conversation, completely different molecules.
They get mentioned in the same breath because both live in the mitochondrial-health conversation. That is where the similarity ends. Methylene blue is a century-old pharmaceutical with modern low-dose interest in cellular energy transport. NAD+ is a coenzyme your cells make and spend continuously. Neither is a substitute for the other, and this page exists mostly to stop that substitution from happening by accident.
The short answer
If your interest is a pharmaceutical with a long clinical history and very specific handling requirements, that is methylene blue, and it is emphatically not a casual supplement; it has real drug interactions your clinician screens for, which is exactly why it is prescription-gated. If your interest is the coenzyme central to cellular energy metabolism, that is NAD+. Some longevity-focused patients discuss both with a clinician. Nobody should be choosing either off a comparison table alone, including this one.
Side by side
| Methylene Blue | NAD+ | |
|---|---|---|
| What it is | A pharmaceutical compound with a century of clinical use | A coenzyme your cells produce and consume |
| The interest | Mitochondrial electron transport | Cellular energy metabolism |
| Handling | Real drug interactions; clinician screening is the point | Route and fit decided in review |
| Form here | Prescription, after clinician review | Injection or nasal spray, after clinician review |
| Regulatory status | Compounded to your prescription; not an FDA-approved drug product | Compounded to your prescription; not an FDA-approved drug product |
| Monthly cost | From $159/mo | From $159/mo |
Why is methylene blue suddenly everywhere?
Longevity podcasts. The molecule is old, the current enthusiasm is new, and the gap between the two is where people get hurt: methylene blue interacts dangerously with common medications, including serotonergic antidepressants. That is not a reason to fear it; it is the reason it is a prescription with a screening step rather than a checkout button.
Questions
What happens if I am not approved?
You are not charged. Your clinician explains the reasoning and, where useful, what a better next step may be. Reviews are typically completed in under 24 hours.
Are these FDA approved?
No compounded medication is FDA-approved, including these. Compounded medicines are made to your individual prescription by a licensed pharmacy rather than manufactured and approved as a finished drug product.
Can they be used together?
That is a clinician conversation. Arrive with the question; do not arrive with a stack you built from the internet.
Ready when you are.
About 10 minutes. No charge unless your clinician approves.