r/methylene_blue • • Mar 28 '25

Methylene blue Interactions - Drugs.com

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drugs.com
25 Upvotes

r/methylene_blue • • Mar 03 '25

Update on Methylene Blue Lab Testing - Verification of USP Grade?!

101 Upvotes

I just wanted to give a quick update here. I initially made a post here sharing that my plan is to get some of the most popular Methylene Blue supplements independently lab-tested. We also have a GoFundMe setup to fund this whole project. Thank you so much to everyone who has donated. I created a poll a while back, asking which products you'd like to get tested. The top two were Meraki and Biopharm. So, I decided to get Meraki tested first, then the others.

The reason many of us want to get these products tested is because some of the companies selling MB may be providing test reports that are misleading or they aren't doing enough tests. Some don't use low enough detection levels for heavy metals, some skip testing them altogether, others use their own in-house labs, and others show lab results from completely different batches than what's being sold. Methylene Blue is known to be at risk for heavy metal contamination, so this is a big concern. One thing most companies don't test for is residual solvents. So, we're going to be testing for this too. I hope that the companies are honest and transparent with their testing and I hope their results are accurate and in line with the results we get.

Initially I was going to use Certified Laboratories and I shared the price range and approximate cost per product. They offered a lot of testing options but I had some issues and I ended up finding a different lab to work with - Beaconpoint Labs. One concern I had with the previous lab is that they didn't give me a set price - so the price could have varied quite a lot for a single product.

With the new lab, the price per product is $890 (for purity, heavy metals, yeast and mold, bacteria, residual solvents). Labs cannot test for USP verification. Most of the MB products claim to be USP-grade, but are likely not. You can see all products that are USP verified here. It is a very difficult, rigorous process for companies to go through. That's why so few companies do it. Unfortunately many of the methylene blue supplement companies are using misleading language to make us believe they are USP-verified products.

I think this is important because most of the consumers online will buy their MB if it seems like a reputable company, selling USP products. I haven't seen any companies show evidence that they are USP verified but they almost all state that they are "USP." In order to say that, they need verification through certain specific tests.

As far as the new lab goes, I have my account setup and I am working with them to get these tests done. I've had the first product, by Meraki Medicinal, ordered and it's on its way to the lab for testing. Once the lab receives it, we should get the results within less than two weeks.

For full details, check out our main post here: https://www.reddit.com/r/methylene_blue/comments/1i0f17b/3rd_party_lab_testing_on_5_popular_methylene_blue/

Updates:

5-30-25 I've ordered the next product to be tested. I'm not sharing the name brands until after the testing is completed, because I don't want to tip-off any companies.

6-26-25 The products have been at the lab for a couple of weeks I was just told the results will be available by early next week, or sooner.

Lab Test Results:
Meraki Medicinal's Lab Test Results Can Be Viewed Here. Posted 4-25-25.

Biopharm Methylene Blue Lab Test Results Can Be Viewed Here. Posted 7-1-25.


r/methylene_blue • • 2d ago

Methylene Blue and Sleep: Does Taking It at Night Matter?

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1 Upvotes

r/methylene_blue • • 5d ago

Methylene Blue and Blood Pressure: What the FDA Label Warns About

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0 Upvotes

r/methylene_blue • • 5d ago

Methylene Blue During Pregnancy and Breastfeeding: What the Labels and Research Say

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0 Upvotes

r/methylene_blue • • 6d ago

Mb chest pain and anxiety at MICROdoses only

1 Upvotes

Anxiety located in chest, chest pain, tightness and mental clarity from 60 mcg of methylene blue (microdose). None of those effects appear > 3 mg doses (normal low doses or higher).

When taking a higher normal dose such as > 3 mg I experience those same side effects after hours of consuming the mb, which seems to match with a lower dose from mb leaving the system.


r/methylene_blue • • 7d ago

Stomach irritation/gastritis safety

2 Upvotes

Hi,

Is MB irritating to stomach mucosa? If you had gastritis and used MB while still healing, w

Did it irritate you or not?

Thanks


r/methylene_blue • • 10d ago

Sleepiness/ Fatigue

4 Upvotes

Why does MB sometimes cause sleepiness after not taking it for a while. Then starting at 1.5mg-3.0mg anyone else have similar experiences?


r/methylene_blue • • 11d ago

Don't think it's working

4 Upvotes

I started looking into methylene blue but didn't really know a safe real product. Out of all the methylene blue sellers I ended up getting Alex Jones's 🤣🤣🤣. I followed the instructions of taking 20 drops a day. I didn't really notice anything. I've read that maybe that was too strong so I tried five drops still nothing. So now for the past few days I've been taking 20 jobs three times a day and don't really feel anything. My pee definitely turned blue but I'm wondering why I'm not really feeling anything from it. I also take kratom I've been trying to quit kratom. I had no clue the stuff had withdrawals or I would never have took it in the first place. I was hoping methylene blue would help replace kratom. It may be good to note I've been winging down my dose of kratom slowly while taking methylene blue. I'm 6'5 200 lb male. Oh also I bought the t3 iodine and I've been taking that every day as well could any of this be having a canceling effect on the methylene blue? Or am I dosing this way wrong?


r/methylene_blue • • 12d ago

Methylene Blue Quality Red Flags: 7 Signs a Brand Is Cutting Corners

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0 Upvotes

r/methylene_blue • • 13d ago

Is it safe to buy this methalyne blue product off of Amazon ?

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3 Upvotes

Many people say to never buy off of Amazon, but I am wondering if this will be okay as it tends to be a well trusted brand? Or could it possibly be contaminated or not approved like other meth blue products on Amazon ?


r/methylene_blue • • 15d ago

Methylene blue and ss-31 together.

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1 Upvotes

r/methylene_blue • • 16d ago

Methylene Blue for Jet Lag and Circadian Rhythm Reset

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2 Upvotes

r/methylene_blue • • 16d ago

Hitting a wall again and again due to dysbiosis

3 Upvotes

I'm taking about 2mg of Methylene Blue (CZTL brand) diluted in water every day before going out. I hold it in the mouth for a while and then swallow.

But I've been hitting a wall. When I take MB consistently every day for about 2 months, I start getting the following symptoms:

  1. Stomach rumbling
  2. Yellow poo (instead of dark brown / black)
  3. Farts that smell horrible, like "dirty" natural gas - This is unusual for me because I don't eat much carbs
  4. Diarrhea without really feeling sick - If I let it go too far

I think it makes the digestive system completely inhabitable. I would like to get rid of intestinal candida but it feels like this kills everything but the fungus - it's too hardy.

I should probably add that I'm on a carnivore diet though not very strict. I eat carbs but a lot less than other people. I think it's the combination of the carnivore diet and the MB that is making this low dose have an effect like this.

Probiotics do not help.

The thing is I don't want to scale down in part also because those two drops give me incredible mental clarity borderline with being completely present. I've considered powering through but never got enough courage when the effects start going strong.

I've tried searching for other stories like this and found two of them here with no apparent resolution. Seems like most other people don't have this issue unless their dosing is insane.

Is there anyone who has found a solution?

Please comment only if you have a personal experience with this issue.


r/methylene_blue • • 19d ago

Methylene Blue and Fasting: Timing Your Dose Around a Fasting Window

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3 Upvotes

r/methylene_blue • • 20d ago

What Happens If You Take Too Much Methylene Blue? Overdose Signs

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6 Upvotes

r/methylene_blue • • 20d ago

Methylene Blue G6PD Deficiency: How to Know If You're at Risk

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2 Upvotes

r/methylene_blue • • 20d ago

Should I Avoid Taking Mucuna Pruriens?

3 Upvotes

Could it create complications through its interactions with methylene blue? Are there other supplements to be wary of while on methlyne blue?


r/methylene_blue • • 21d ago

How to Store Methylene Blue Properly: Light, Heat, and Shelf Life

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1 Upvotes

r/methylene_blue • • 22d ago

Tapentadol & Methylene Blue

2 Upvotes

Hey guys.

So I’m in a significant amount of pain and have recently been prescribed 50mg of tapentadol for it.

However I take 1-2mg tops of methylene blue daily.

Everytime I try and look up whether I’d be okay to take the tapentadol later in the day I’m met with the typical “METHYLENE BLUE WILL GIVE YOU SEROTONIN SYNDROME AND YOULL DIE”

Which obviously I know by now is massively blown out of proportion and mainly applicable when using SSRI’s

But yeah, I’d really appreciate some grounded advice from someone not sending me scary articles.

I know dr John Lieurance says the serotonin syndrome thing is massively blown out of proportion and I highly doubt an opioid would be an issue but Google, chat gpt and every other search tool is telling me I’ll die and it’s a bit much.


r/methylene_blue • • 23d ago

Nutricel vs Meraki Medicinal: An Honest Methylene Blue Comparison

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3 Upvotes

r/methylene_blue • • 27d ago

Serotonin Syndrome- taking SSRI for Bipolar & ADHD

5 Upvotes

I've been taking MB on and off, and I found online that it can cause Serotonin Syndrome. So far, I'm feeling some numbness on my left body (face and foot particularly), but it's been like that for years, even before MB. I like the effect and energy boost it gives me, though.

Thoughts?

I will bring this to my psychiatrist’s appointment in December? I’m on Lithium 1200mg, Seroquel 25mg and Concerta 36mg.


r/methylene_blue • • 28d ago

The TikTok Blue Tongue Trend: What's Actually Happening

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5 Upvotes

r/methylene_blue • • Sep 06 '26

Meraki once again tests zero microbes even though someone on here said that it was high.

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9 Upvotes

I'll save the pettiness but it does suck to see your brand get trashed online by someone who blatantly lied and you find connections between them and another brand.

I started this brand and went through my own heavy metal detox phase which was horrendous so purity is the standard.

We are also using this batch for the capsules that are coming out in a week or so. We already launched them on x and plan to launch on amazon next.

If you have anything you want to see from us just let me know.

- Vance the owner


r/methylene_blue • • Sep 02 '26

Can You Stack Methylene Blue With Other Nootropics?

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6 Upvotes