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Your prescriber
Kim Callender, NP, FNP-BC
Lead prescriber. Medical director: Jonathan Snipes, MD.
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What It Is
At low doses, Methylene Blue acts as a mitochondrial enhancer and neuroprotectant. It's one of the oldest synthetic compounds in medicine with newfound cognitive applications.
How It Works
It serves as an alternative electron carrier in the mitochondrial electron transport chain, boosting ATP production. It also has antioxidant properties.
Who It's For
Those seeking subtle cognitive enhancement and neuroprotection. Starting dose for methylene blue beginners.
Who Should Avoid It
Important: this applies at every strength, including 5 mg. Methylene blue is a potent MAO-A inhibitor at every strength we offer. This is not something that only happens at higher strengths. Do not take methylene blue if you are taking any of the following: SSRIs, SNRIs, MAOIs, tricyclic antidepressants, lithium, tramadol, dextromethorphan, meperidine, triptans, St. John's Wort, or any other serotonergic medication. The combination can cause serotonin syndrome, which can be fatal. Tell every other prescriber you see that you are taking methylene blue. The most likely way this goes wrong is a clinician starting you on an antidepressant without knowing, and they have no reason to think of a blue capsule as an MAOI. Methylene blue is also contraindicated in G6PD deficiency, which carries a risk of hemolysis. G6PD status is confirmed with a simple blood test. Risk is higher in people of Mediterranean, African, or Southeast Asian descent.
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Protocol & Pricing
Pharmacy Price
$1.75/cap
You pay pharmacy price. No markup.
Starting Dose
5mg/cap
Form
Capsule (5mg)
Dosing Protocol
1 capsule (5mg) daily by mouth in the morning.
Beyond Use Date
180 Days from compounding (USP <795>)
A licensed U.S. 503A compounding pharmacy assigns this date and prints it on your vial label. Always follow the label.
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A licensed provider reviews every order.
Stacking Guide
Stacks Well With
Do Not Combine With
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Mitochondrial cognitive capsule (MB-5 to MB-25)
Read the Methylene Blue 5mg protocol guide
Mitochondrial electron carrier at low dose, MAO-A inhibitor at any dose. SSRIs, SNRIs, MAOIs, TCAs are hard contraindications. Hormetic dose curve. Medication screening is mandatory.
Related Peptides
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How to get Methylene Blue 5mg prescribed online
Methylene Blue 5mg is available by prescription after an online medical review and dispensed for human use by a licensed 503A pharmacy. That is what separates it from research-use-only vials sold without a prescription. There is no membership, just a medical review fee per order, and automatic refills are optional.
- 1
Complete a $39 medical review. Answer a short intake about your health history and your goals for Methylene Blue 5mg. The $39 fee is the only charge Rx Peps Direct collects, paid once, not a recurring subscription.
- 2
A licensed provider reviews it. A US-licensed clinician reviews your intake and, if Methylene Blue 5mg is appropriate for you, writes a patient-specific prescription. The starting dose is typically 5mg/cap.
- 3
The pharmacy compounds and ships it. A licensed 503A compounding pharmacy in Texas compounds Methylene Blue 5mg and ships it ready to use in its dispensed form by FedEx overnight. Your fill is Capsule (5mg), and you pay the pharmacy $1.75/cap at wholesale, with no clinic markup, plus a $15 flat FedEx overnight shipping fee charged by the pharmacy.
Rx Peps Direct prescribes Methylene Blue 5mg in the 28 states plus Washington, DC where its medical team is licensed. Start your $39 medical review or browse the full Cognitive & Brain Health range. Comparing services first? See how Rx Peps Direct stacks up against seven other providers in our best telehealth for compounded peptides comparison.
Ready to add Methylene Blue 5mg?
A licensed provider reviews every order.
Common questions about Methylene Blue 5mg
- What is the 5 mg methylene blue capsule for?
- The 5 mg methylene blue capsule is the entry-level cognitive-support dose. At 5 mg per day, methylene blue acts as a redox shuttle in the mitochondrial electron transport chain, supporting ATP production. It is still a potent MAO-A inhibitor at this strength, so the serotonergic-medication contraindication applies in full. This is the recommended starting strength for adults new to methylene blue who want to establish tolerance before considering higher doses.
- Who should start at 5 mg vs the higher doses?
- First-time methylene blue users should start at 5 mg to assess tolerance, allergic response, and any unexpected interactions. Patients on multiple medications, older adults, and patients with reduced hepatic clearance should typically remain at 5 mg long-term rather than escalating. Any patient with a history of serotonergic medication use must screen with a provider before starting; Rx Peps Direct auto-denies methylene blue to patients on SSRIs, SNRIs, MAOIs, or other serotonergic drugs at any dose.
- Is 5 mg methylene blue safe for everyday use?
- Pharmaceutical-grade methylene blue at 5 mg per day has a strong safety record across more than a century of clinical use. Common transient effects include blue-green discoloration of urine and tongue, and rare mild GI upset. Methylene blue is a potent MAO-A inhibitor at every strength, including 5 mg, so never combine it with SSRIs, SNRIs, MAOIs or any other serotonergic medication. Patients with G6PD deficiency must not take methylene blue at any dose.
- How do I take the 5 mg capsule?
- Take one capsule daily in the morning with water on an empty stomach (no food for 30 minutes before or after). Avoid taking with vitamin C or ascorbic acid supplements; they interfere with methylene blue's redox cycling. Track any side effects for the first two weeks; if tolerated and your provider agrees, you may step up to a higher dose strength.
- What medications cannot be combined with methylene blue?
- Do not combine methylene blue at any dose with SSRIs (sertraline, fluoxetine, escitalopram), SNRIs (venlafaxine, duloxetine), MAOIs, tricyclic antidepressants, lithium, tramadol, dextromethorphan, St. John's Wort, or any other serotonergic medication. The combination can cause serotonin syndrome, which is potentially life-threatening. Rx Peps Direct providers screen for all of these during intake; if any apply the prescription is automatically denied.
Ready to add Methylene Blue 5mg?
A licensed provider reviews every order.
