What methylene blue can (and can’t) do for the brain

neurofrontiers.blog

154 points by wiry 4 days ago


Aurornis - 20 hours ago

Methylene Blue is fascinating because it has been present in alternative medicine, biohacking, and nootropics forums for decades. It seems everyone in those communities discovers it eventually, thinks it must be a miracle substance, and then either feels nothing or has some initial positive effects that are either placebo or diminish quickly with tolerance.

From the anecdotes I’ve read over the years, very few people continue taking it. They either feel nothing, get some worrying side effects, or the initial effects they experienced (or placebo) disappear after a couple days or weeks. The most positive posts seem to be correlated with people taking a dozen medications and supplements at the same time, so it’s impossible to know what’s causing their experience.

Another ever-popular medication in these communities is Selegiline: Also an MAOI but selective for MAO-B at low doses (warning: it’s easier to reach MAO-A inhibition with repeated dosing, especially sublingual, than many internet sources claim). This one draws in people who are in their “dopamine explains everything” phase of learning neuroscience and think it must be a hack to get “more dopamine”. Again, few people continue it and many are confused about why they end up fatigued or tired while taking it instead of turning into the guy from Limitless. Neuropharmacology isn’t as simple as taking drugs to push neurotransmitter up.

Selegiline was repurposed as an anti-depressant recently, but it’s delivered transdermally and only showed efficacy at levels high enough to be a full MAOI.

heavyset_go - 13 hours ago

Please be careful with this. It is a powerful MAOI. Someone I know lost their son who was trying to treat their depression with methylene blue. They had a fever, seized out and died, all symptoms of severe serotonin syndrome.

drob518 - 18 hours ago

I took it daily for a couple months, at a good sized dose (approx 20 drops per day). I stopped because

1. I didn’t notice any difference.

2. It’s really messy, as in it (semi permanently) stains your counter tops blue if you so much as let a fraction of a drop land somewhere, including the dehydrated dust. I ended up buying some lab glassware cleaner to help clean it up.

3. It temporarily stains your teeth blue. It also turns your urine blue/green, but that’s no big deal as long as you’re expecting it.

That said, I also didn’t experience any negative effects that I could perceive.

cgio - 20 hours ago

Before taking methylene blue, and if you have genetic origins from high risk areas (Mediterranean, African, SE Asia), make sure you know that you don’t have G6PD. As with all antimalarials, G6PD may result in haemolysis. Of course it’s also on every blue dessert etc. , but don’t take your previous exposure as sign of immunity. Haemolytic episodes are possible but not given and as such you can consume the substance with minor signs for years and still end up with an episode.

perrygeo - 20 hours ago

Given how long it's been around, the promising results, and how many people have been using it for "biohacking" for decades, it was at first a little surprising to hear how little double-blind clinical research exists. Then you realize: methylene blue can't be patented and it's manufacture is no secret. So no one is going to make big money from it, therefore no money goes into clinical research. All too familiar story, and it really calls into question the whole "clinical trials are the arbiter of truth" mentality if the one making that claim also controls the purse strings!

profsummergig - 20 hours ago

How this guy is still alive after all the drugs he did in his youth, and all the testosterone/steroids he takes now, is a mystery to me.

Also, overdoses on methylene blue, apparently: https://x.com/iAnonPatriot/status/1887232439770087608

ChrisMarshallNY - 6 hours ago

> (MAO) inhibitor

That triggered my "uh-oh" alarm.

Anyone familiar with MAO inhibitors as a psych med, know that they can have really serious side effects, when you eat certain things (like chocolate or caffeine). It can kill you[0].

However, I guess that this stuff doesn't have those side effects.

[0] https://www.ncbi.nlm.nih.gov/books/NBK539848/#:~:text=MAOIs%...

fhdkweig - a day ago

It can turn it blue. https://en.wikipedia.org/wiki/Methylene_blue#/media/File:Gro...

neuroelectron - 14 hours ago

This article author doesn't really seem to understand anything, he simplifies things that are complicated like serotonin and other hormone balancing and complicates things that are simple like mitochondria electron exchange. You can't really come to any conclusions from this except that methylene blue is possibly nootropic and people are experimenting with it.

kweks - 17 hours ago

Alternatively, if your tropical or marine fish ever suffer from white-spot disease (actually a nasty protozoan), you use methylene blue to kill the parasite.

carbocation - 15 hours ago

Methylene blue is a vasopressor, particularly good at reversing vasoplegia after cardiopulmonary bypass.

HiroshiSan - 20 hours ago

Here’s a much better treatment of methylene blue than this article:

https://youtu.be/CnIJbbCvFdQ?si=lQ1i2Ah7ZIt6hewT

mintplant - 14 hours ago

Is anyone else getting an ActivityStreams JSON dump of this post instead of an HTML view?

elcapitan - 18 hours ago

Sounds like something you should only consume in Heisenberg quality.

getcrunk - 20 hours ago

Didn’t Mel Gibson say it cures cancer? On jre

- 5 hours ago
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1Sebastian - 10 hours ago

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p1dda - 12 hours ago

To improve your health never start with adding a chemical! Instead remove chemicals and toxins first and foremost.