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The Libido Drug (PT-141)

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956Vette

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Going off this thread, thought I would cite and continue the discussion %)
http://www.bluelight.ru/vb/showthread.php?t=354593&highlight=bremelanotide

The Libido Drug
The Libido Drug~|~Men’s Journal
Wed, Aug 26, 2009

The rise, fall, and stealth return of the world’s first medically proven aphrodisiac.
By Frederick Kaufman

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As soon as the bremelanotide (a.k.a. PT-141) arrived in the mail, I shook the white crystal onto a mirror and began to chop it into powder. I snorted some and a bitter taste began its steady descent down the back of my throat. But I wasn’t about to complain. Thanks to a website called nd $65, I finally had my hands on the most revolutionary sex drug ever created. This potion had undergone studies for almost a decade in a quest to make it the first-ever FDA-approved aphrodisiac to hit the U.S. market.

Sure, history and folk medicine are full of purported aphrodisiacs, like Spanish fly and rhinoceros horn. But bremelanotide isn’t like those — neither is it simply an erectile dysfunction drug like Viagra or Cialis, so-called PDE-5 inhibitors that work by pushing blood around the body. Bremelanotide belongs to a new class of drugs called melanocortins, which work in the mind, increasing sexual desire. Deep inside the brain, the substance stirs passion by activating hypothalamic and limbic emotional structures, the parts that naturally flare when you’re turned on. Scientists aren’t exactly sure how melanocortins do this, but the result is clear: Before you know it, you want to have sex. Or at least that’s what the research has shown.

After snorting 10 milligrams of the stuff, I felt nothing. Several hours later I still wasn’t the slightest bit horny. So at midnight I went to bed, totally unaware of the flood of animalistic desire that was to take hold of me.

A year earlier i was in the montreal lab of Jim Pfaus, arguably the world’s preeminent expert on bremelanotide.

A 50-year-old neuroscientist, Pfaus was in the last stages of preclinical trials aimed at getting FDA approval for bremelanotide. Originally developed as a self-tanning agent, the drug had been repurposed when male study subjects reported a surprising side effect: erections. A New Jersey pharmaceutical company called Palatin Technologies had bought the drug, then turned the pill into a powder that could be delivered nasally, hoping that sleek nasal-spray dispensers could blow away little blue pills — and earn profits that would dwarf the $150 million that Palatin had spent on research and clinical testing.

Pfaus showed me stunning testimonials from human test subjects. “On the five-point scale, I would rate the erection I had as a six,” said one of the 1,300 anonymous testers. “You get this humming feeling,” said another. “You’re ready to take your pants off and go.”

The drug worked equally well on women, who chronicled “an intense arousal” that lasted from six to 72 hours. “I was focused on sex,” said one of the women.

But there were side effects, and in 2007, Palatin’s sex drug hit a roadblock just before entering phase-three testing, the FDA’s final clinical hurdle before the drug is released to the public. Some of the men who sniffed bremelanotide experienced an increase in blood pressure, and about one third of the women who took the drug reported nausea.

There were also those who doubted the drug would actually cause couples to want to jump into bed together. “It’s baloney,” says Leonore Tiefer, a professor of psychiatry at New York University’s Langone School of Medicine. “You might increase genital itchiness, but you won’t increase desire.”

It appeared that bremelanotide would fall into the ash heap of failed aphrodisiacs, to rest in peace with tiger penis soup. But then something unexpected happened.

In 2008, Iranian urologist Mohammad Reza Safarinejad published findings he had gathered by testing bremelanotide that he purchased from a company in Dubai on men and women. “He got fantastic results,” says Pfaus. “Palatin had published everything about the drug — including the exact sequence of the compound.” Middle Eastern chemists used that sequence to create the drug themselves. Shortly thereafter, several companies began offering the drug online.

But was it safe? “Well,” says Pfaus, “we never resolved that blood pressure thing. There’s no guarantee of purity. The FDA won’t regulate it.”
 
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PT141 Bremelanotide How to Mix and Use

http://www.youtube.com/watch?v=kpQSxbf4ZM8


And an older write up circulated online:


What is Bremelanotide (PT-141)?

Bremelanotide (formerly PT-141) is the generic term for a new medication for use in treating sexual dysfunction in men (erectile dysfunction or impotence) as well as sexual dysfunction in women (sexual arousal disorder). It is a synthetic aphrodisiac. Unlike Viagra and other related medications, it does not act upon the vascular system, but directly increases sexual desire.

Originally, the peptide Melanotan II that bremelanotide was developed from was tested as a sunless tanning agent. In initial testing, Melanotan II did induce tanning but additionally caused sexual arousal and spontaneous erections as unexpected side effects in eight out of the ten original male volunteer test subjects. In clinical studies, bremelanotide has been shown to be effective in treating male sexual and erectile dysfunction as well as female sexual dysfunction. It is currently being tested by Palatin Technologies.

Bremelanotide is a cyclic hepta-peptide lactam analog of alpha-melanocyte-stimulating hormone (alpha-MSH) that activates the melanocortin receptors MC3-R and MC4-R in the central nervous system. It has the amino acid sequence Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH or cyclo-[Nle4, Asp5, D-Phe7, Lys10]alpha-MSH-(4-10). PT-141 is a metabolite of Melanotan II that lacks the C-terminal amide function. Its molecular formula is C50H68N14O10 with a molecular weight of 1025.2.
In the United States it is currently in a Phase III clinical trial.

Are these nasal? Oral, Injectable?

Currently the nasal and oral routes have not been made efficient. PT-141 is a sterile injectable made for sub-q injection, like insulin.

What's the dosing schedule...how much do I take?

.5mg-2mg is the range which people dose. Taking 2-4 hours before game time is ideal. The window of opportunity is very unique.

Say you had a dinner and movie arranged. Taking before dinner may be the best route, however during the climax of the movie may interfere with one of your own…read between the lines there ;)

Is there any reconstituting involved?

Yes and bacteriostatic water is the recommended solvent here. To mix the vial with bact water, take one syringe (BD Ultrafine II 1cc or 1/3 cc are excellent and I recommend them) and grab your vial of bacteriostatic water. If using a 1 cc syringe (100 units), use the syringe to withdraw 1 full ml (1cc) and inject that into the vial of PT-141 through the rubber. Be sure to aim the needle towards the glass, so that it will trickle down and not harm the peptide. Swirl the vial to thoroughly mix and let the peptide dissolve. The key here is to be gentle. Say you had the vial of PT-141 stored in the freezer, move the vial of PT-141 to fridge for an overnight stay. Then you are ready the next day to reconstitute the same temperature refrigerated bact water with the PT-141 in the most efficient manner. Just some tricks of the trade here.

So now you have 100 units (1cc) of bacteriostatic water mixed with 10 mg of PT-141 in your vial ready to go. A 1mg dose would be 10 units or .1ml (.1cc). Make sense? Hope so.

How is it stored?

The lyophilized powder (freeze dried state) can be stored in the freezer or refrigerator. Once reconstituted (mixed with water) it will be good for a month in the refrigerator before it begins to degrade.

Does this help give erections or just put you in the mood?

“With PT-141, you feel good, not only sexually aroused,” reported anonymous patient 007, a participant in a Phase 2 trial, “you feel younger and more energetic.” Said another patient: “It helped the libido. So you have the urge and the desire. . . . You get this humming feeling; you’re ready to take your pants off and go.” And another: “Twice my wife and I had sex twice in one night. I came in [to work] and I just raved about it: ‘Jesus, guys . . . 58 years old and you don’t do that.’ ” Tales of pharmaceutically induced sexual prowess among 58-year-olds are common enough in the age of the Little Blue Pill, but they don’t typically involve quite so urgent a repertoire of humming, throbbing, tingling, and double-dipping. Or as patient 128 put it: “My wife knows. She can tell the difference between Viagra and PT-141.”

The precise mechanisms by which PT-141 does its job remain unclear, but the rough idea is this: Where Viagra acts on the circulatory system, helping blood flow into the penis, PT-141 goes straight to the brain itself. And there it goes to work, switching on the same neural circuitry that lights up when a person actually, you know, wants to.

Basically this takes men back to middle school. You may find yourself in a similar situation as you were in 8th grade science class with the teacher bent over helping the student in front of you. It may be necessary to do a “tuck up” if at the office…especially at the public pool!

Women state that the sensation given from injecting PT-141 is like being in heat! One colleague in particular stated that she didn’t know what was going on…but she had wanted “it” all day long after dosing the night before.
 
Have there been many reports of pigmentation effects from usage of bremelanotide?
 
Have there been many reports of pigmentation effects from usage of bremelanotide?

Reports are rare, but they are out there. Generally I have seen a mention with no follow up. Not entirely sure what to make of those reports. Yourself?
 
Reports are rare, but they are out there. Generally I have seen a mention with no follow up. Not entirely sure what to make of those reports. Yourself?

It is probably the case that if one were to use bremelanotide in a manner similar to melanotan II (for skin darkening) one would develop an equivalent level of pigmentation. I conjecture that the key to avoiding noticeable pigmentary effects for melanotan II (and likely bremelanotide) is to simply not use it in the prolonged manner that would lead to noticeable darkening but simply use it moreso on occasional one offish usage.
It would be helpful to know the level of MC1R agonism that bremelanotide actually has.
 
It is probably the case that if one were to use bremelanotide in a manner similar to melanotan II (for skin darkening) one would develop an equivalent level of pigmentation.

Interesting stance. I agree I would love more.

My theory would not be that one would develop an equivalent level, but rather a marginal level of pigmentation (from PT-141) in contrast to MT-II.


The wheels are spinning though, great post
 
Interesting stance. I agree I would love more.

My theory would not be that one would develop an equivalent level, but rather a marginal level of pigmentation (from PT-141) in contrast to MT-II.


The wheels are spinning though, great post

Could be a good experiment to actually try using bremelanotide to develop pigmentation rather than merely to overcome sexual / libido dysfunction.

It is easy to imagine that Palatin was want to get out from underneath the limitations that their original melanotan II Competitive Technologies license imposed upon them and so come up with an additional proprietary melanocyte stimulating hormone analog. Whether they genuinely managed to develop an agonist that is highly selective for MC3R and MC4R and not selective for MC1R is certainly questionable.
Back when they were working with melanotan II (which they referred to as "PT-14") they likely encountered the same blood pressure issue (via intranasal administration) that they later encountered with intranasal bremelanotide (PT-141). If they did encounter that issue with melanotan II/PT-14 then they probably would also have thought (apparently erroneously) that they could potentially overcome it with another analog.

If the analog they developed (bremelanotide) did have pigmentation effects it would be understandable that they'd want to play them down and thereby avoid the "Barbie drug" moniker.

What are people reporting in terms of the appetite suppression effects of bremelanotide?
 
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I had the (dis)pleasure of trying PT-141 a few years back. I believe I did it a total of 4 times before tossing the vial. All times were through intramuscular injection in varying doses.

What I noticed was that the drug gave all the benefits of viagra or yohimbe (raging erection) without any noticed cardiovascular effects. This was pleasant, it also allowed for the ability to maintain an erection indefinitely for the duration of the effects (usually 30min-1hr) if desired without a change in strength even after orgasm.

The biggest problem I had were that the erections lasted too long (even after an orgasm I would still be very hard and after a while this became painful until the effects wore off) and that often reaching orgasm was extremely difficult and I believe coincided with the levels of the drug in my system (higher levels, less able to orgasm, lower levels, orgasm).

I once decided to go crazy and try 4 times the normal dose. This resulted in a 4 hour erection with inability to orgasm. I was close to going to the ER. Other than that I noticed no other side effects.

It was great but I didn't notice any change in psychological libido, only physical.
 
Who cares what you guys think? Let's get some female reports here on Bluelight...
 
Who cares what you guys think? Let's get some female reports here on Bluelight...

agreed, lol :D

One dated report, but I trust her story:
moonsvixen said:
I had a strange, but quite nice experience the last time out. Hubby and I both injected bremelanotide (PT-141), but unexpected company showed up ..long story short we injected again the following day and once again bremelanotide (PT-141) performed its magic...here's the strange part...I felt the effects of bremelanotide (PT-141) for days afterwards..in fact for about 5 days after the last injection my libido was rocking with the physical symptoms that go along with it. I swear I felt as i did in my 20's.
http://melanotan.org/cgi-bin/yabb/YaBB.pl?num=1196897914

moonsvixen said:
This stuff is unbelievable!!!! It would be difficult for me to describe this experience without sounding like a porn magazine so you guys will have to read between the lines.

Me: 55 years old, 170 lbs, post menopausal, injected 1.7mgs
Hubby: 55 years old, 150 lbs, injected 1.2 mgs

10 mg vial reconstituted with 1ml of bac water.

We both experienced slight flushing and queasiness approx. 10 minutes after injection..sides lasted no more that 15 minutes.

3 hours after injection bremelanotide (PT-141) hit like gangbusters. We were sitting in the lounge area of a restaurant when my nether regions made themselves known. Increased sensitivity to any movement I made in my seat i.e. shifting or leg crossing. This was coupled with increased sexual thoughts. It is difficult not to think in sexual terms when some body parts are demanding your attention! My husband had a difficult time getting up from his chair to even approach the restaurant table. Next time we will time the injections better LOL

Heightened sensitivity, an overall "feel good" effect, on and off rock hard erections for hours, multiple mind-numbing orgasms! To say we are impressed with the effects of bremelanotide (PT-141) is an understatement. Viagra, Cialis etc aren't even in the same ballpark.
http://melanotan.org/cgi-bin/yabb/YaBB.pl?num=1175028159/0#0
 
it's just a portion of the mII chain, I was in the testing stages of the mII which I discontinued use in less than 2weeks.. Freckles, moles, spots I didn't even know I had wear appearing and very dark! I looked like a connect the dot game.. Most if not all of these spots disappeared or went back to their normal colors.. subq and only 1-2mg a day/ I didn't get the erections that others that were close to me were reporting.. However I personally knew them and know it isn't hype.. this pt-141 most likely works but is hit or miss in people..
 
I was in the testing stages of the mII which I discontinued use in less than 2weeks.. Freckles, moles, spots I didn't even know I had wear appearing and very dark! I looked like a connect the dot game.. Most if not all of these spots disappeared or went back to their normal colors.. subq and only 1-2mg a day/ I didn't get the erections that others that were close to me were reporting.. However I personally knew them and know it isn't hype.. this pt-141 most likely works but is hit or miss in people..

Just to clarify, was your experience with the original melanotan or were you indeed using melanotan II?
 
I purchased 50mg (5x10mg vials) a couple months ago to try with my gf.

First off we both used it nasally (10mg) and both got no effects apart form the fact our nose started to hurt after a while, I put this down to the fact that i diluted it to much. The day after i subq'd 1mg and got no effects. I think the whole batch was dodgey tbh because i ordered some for my boss two weeks before hand and he said it worked great where as me and my gf got no effects apart from a sore nose.
 
Appreciate that, didnt know what you meant by saying you were in the testing stages....

Really, no sides from a 1mg dose? That is wild. Did you continue to inject subq?
 
Just to clarify, was your experience with the original melanotan or were you indeed using melanotan II?

mII-Lyopholized 10mg vials, I wouldn't be so sure that the pt-141 doesn't still contain some of it's tanning properties..
 
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