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Stimulants Ritalin versus Vyvanse versus dextroamphetamine (dexedrine)?

Unsure why that is, perhaps the increase in noradrenaline mirtazapine causes?
It could be enzyme-related. But it also increases dopamine, among other things.

Check it out (from Wikipedia, bold mine):

Antagonism of the α2-adrenergic receptors, which function largely as inhibitory autoreceptors and heteroreceptors, enhances adrenergic and serotonergic neurotransmission, notably central 5-HT1A receptor mediated transmission in the dorsal raphe nucleus and hippocampus; hence, mirtazapine's classification as a NaSSA. Indirect α1 adrenoceptor-mediated enhancement of serotonin cell firing and direct blockade of inhibitory α2 heteroreceptors located on serotonin terminals are held responsible for the increase in extracellular serotonin. Because of this, mirtazapine has been said to be a functional "indirect agonist" of the 5-HT1A receptor.

… Mirtazapine increases dopamine release in the prefrontal cortex. Accordingly, it was shown that by blocking the α2-adrenergic receptors and 5-HT2C receptors mirtazapine disinhibited dopamine and norepinephrine activity in these areas in rats. In addition, mirtazapine's antagonism of 5-HT2A receptors has beneficial effects on anxiety, sleep and appetite, as well as sexual function regarding the latter receptor. Mirtazapine has been shown to lower drug seeking behaviour (more specifically to methamphetamine) in various human and animal studies. It is also being investigated in substance abuse disorders to reduce withdrawal effects and improve remission rates.

I'm not surprised you've seen this effect of synergy between Ritalin and Mirtazpine given their pharmacodynamic profiles.
 
I'm not surprised you've seen this effect of synergy between Ritalin and Mirtazpine given their pharmacodynamic profiles.
Surprising it's not a more frequently used combination, that being the case?

It's just not one I read about frequently (or ever) though.

Methamphetamine that's typically used that's non-pharma, would it be racemic, d or l methamphetamine - any idea?

D-meth has more DA activity according to that link, presumably better effect on ADHD symptoms?

L-meth........ yeah I think you mentioned that's available OTC in decongestant sprays, presumably it's non-psychoactive?
 
Ritalin (Methylphenidate) is ideally combined with a specific SSRI to make its subjective reinforcing effects more “cocaine like” . I read a medical journal that studied the effects of Ritalin combined with an SSRI

If it were me….Id combine Ritalin with Tramadol (a weak atypical opioid + NE & SERT reuptake inhibitor) plus perhaps low dose Oxy-IR 10mg and a Xanax 1mg ….a fabulous oral cocktail
 
Ritalin (Methylphenidate) is ideally combined with a specific SSRI to make its subjective reinforcing effects more “cocaine like” . I read a medical journal that studied the effects of Ritalin combined with an SSRI
Yeah that's why I was asking @JohnBoy2000 if they like cocaine. Cocaine and Ritalin both act as RIs of dopamine and adrenaline, but only cocaine also inhibits serotonin reuptake, kinda completing the trifecta, as it were. So yeah, add that to the dopamine-enhancing effects, and I could see this being the net effect. It makes sense.

If it were me….Id combine Ritalin with Tramadol (a weak atypical opioid + NE & SERT reuptake inhibitor) plus perhaps low dose Oxy-IR 10mg and a Xanax 1mg ….a fabulous oral cocktail
Tramadol has a lot of counterindications, and then mixing it with a 10 mg Oxy-IR, well to start, that's probably too much for someone without tolerance, particularly on top of the Tramadol. And then mixing that dose with a half a Xanax bar and zero tolerance, again… too much. This is a bad, potentially very dangerous drug combination. Sure the Ritalin kicks back some, but that's the one thing they have some tolerance to. So please, @JohnBoy2000 don't take these doses. Besides, the opioids are nauseating, constipating, and counterproductive. Not knocking them—they have their time and place—but I don't think it's what you're looking for right now.

An easier early move is to pre-dose with something to raise renal/urinary pH like a spoonful of baking soda dissolved in a glass of water, or a handful of antacids like Tums, Rolaids, Maalox, etc. This increases bioavailability and slows down elimination from the body making your drugs hit harder and last longer.
 
Surprising it's not a more frequently used combination, that being the case?
Well it's not really medically desirable. Euphoria is an unwanted side effect for any clinician. Leads to compulsive drug problems and malpractice insurance providers really frown on that stuff, to say the least. And meanwhile antidepressants are rarely used recreationally, so it stands to reason…

It's just not one I read about frequently (or ever) though.
That's not proof of anything here though. I'm sure you don't read every journal out there cover to cover, so to speak.

Methamphetamine that's typically used that's non-pharma, would it be racemic, d or l methamphetamine - any idea?
If produced via ephedrine/pseudoephedrine, it will all automatically be rearranged as the d-isomer, which adds to those routes attractiveness and elegant simplicity. For serious, both the Nagai and Birch reductions are beautifully simple and wonderfully effective, particularly the Birch. But I digress. If the meth in question is made from P2P or P2NP, then the initial results from reductive amination are racemic. Most modern labs will separate and resolve the isomers with tartaric acid, converting the l-isomer into a new racemic batch to be separated again and combined, repeat, ad infinitum and the purity gradually comes up to an acceptable level near that of ephedrine-derived meth. This is usually around 92%.

D-meth has more DA activity according to that link, presumably better effect on ADHD symptoms?
If taken orally and in doses mirroring—or close to—that of Adderall, then they're fairly indistinguishable. Anecdotal reports though indicate that meth can be less productive, more scattered, and more given to distractions and impulse. I like to tell people that meth is generally better as a recreational stim like MDMA or Coke than it is a productivity stim like Adderall, Vyvanse, Dexedrine, or Ritalin. I also joke that the Axis powers during WWII were hopped up on meth while the Allies were using benzedrine (bennies, aka amphetamine), and we all know who won the war…(this is somewhat true, look up Pervitin) lol, but of course this maybe had no net effect on the war's outcome, though some people claim Hitler's documented daily injection of methamphetamine didn't help him make good decisions toward the end of the Third Reich. If so, thank God for meth!

L-meth........ yeah I think you mentioned that's available OTC in decongestant sprays, presumably it's non-psychoactive?
That's right. It's mostly only active in the peripheral nervous system. So it speeds up the heart and causes vasoconstriction and bronchial dilation. It just doesn't affect us mood-wise or cognitively very much, not directly anyway. Because it's extra work and expense processing the unwanted L-isomer out of a batch of racemic P2P meth, it's kinda become something of a de facto cut when some of it is left in. Quality suffers but there's less labor and more profit. But it's nasty and it thwarts contiguous crystal growth. Anyone who uses knows that easily crushed, crumbly meth is not high-quality. It should be super tight, rigid, contiguous flat crystals that don't get bigger than a quarter and ❊tink!❊ like coins on a hard surface. Should be clear-ish but also cloudy white and not absolutely clear. Unfortunately quality still varies quite a bit and virtually no one prescribes Desoxyn or Methedrine anymore. Too risky with patients and potential malpractice claims bc too many ppl get carried away when they discover that meth has a rather high capacity for abuse. Those lacking self-discipline need not apply.
 
Yes, I can totally see your point. Methylphenidate is extremely short acting…..why I have BIPHENTIN XR 60mg capsules

40% of dose is IR ….remaining 60% of doses is released 4h after, reaching onset/peak in about 6h ….so about 10h of coverage

I usually pulverize the XR beads into fine powder so it’s all IR as I require about 60mg IR of Ritalin to feel its therapeutic effects…lasting 3-4 hours. I’ve never experienced any negative sideffects from Ritalin what so ever….except profound Euphoria and robust mood-boosting properties
Just in relation to this;

Back in my pharmacology reading days, I believe I read about an interaction between buproprion and ritalin, the former raises the levels of the latter.

I found a greatly enhanced effect of ritalin, the day after taking buproprion.... presumably via the above.

.......

Do you find you don't actually begin to experience the beneficial effects of ritalin, UNTIL you get to 60 mg?

Cause without combining it with something else, even up to 40 mg, I get a very mild mood/energy boost, but nothing that's getting me up and out the door.

Using it as above though with bupropion, really gave a solid energy leap, and suddenly I'm up and at it......... but I'm not thrilled about using one drug I don't need or like, to stunt metabolism of another drug so I can feel its beneficial effect.
 

Bupropion inhibits CYP2D6


Thus, inhibitory interactions might be possible between methylphenidate and drugs that are potentor even moderate inhibitors of 2D6 (e.g., fluoxetine, paroxetine, bupropion) in which serum levels of methylphenidatewould increase.

.........

Using these together before produced a "trippy" effect, so it would seem one does raise levels of the other.

The alternate possibility being, there's some kind of synergy between the two the produces an improved mood and energy boosting effect.
 
Just in relation to this;

Back in my pharmacology reading days, I believe I read about an interaction between buproprion and ritalin, the former raises the levels of the latter.

I found a greatly enhanced effect of ritalin, the day after taking buproprion.... presumably via the above.

.......

Do you find you don't actually begin to experience the beneficial effects of ritalin, UNTIL you get to 60 mg?

Cause without combining it with something else, even up to 40 mg, I get a very mild mood/energy boost, but nothing that's getting me up and out the door.

Using it as above though with bupropion, really gave a solid energy leap, and suddenly I'm up and at it......... but I'm not thrilled about using one drug I don't need or like, to stunt metabolism of another drug so I can feel its beneficial effect.
Yes, good point... I also have a script for Bupropion XR 150 and definitely it makes Ritalin more noticeable and effective

It's not uncommon to be prescribed both at same time

Just my tolerance increased.....Ritalin 50mg IR after breakfast is sufficient for 3-4h of noticeable effects ....60mg is my usual dose for a little muscle when taken with my Methadone 100mg after breakfast, and a few Gin & ginger ale cocktails (to increase d-MPH levels by 40%) which is the only desireable isomer targeting the DAT/NET .....so moderate ethanol consumption increases active d-threo-methylphenidate levels, enhancing its euphoric/mood-boosting properties

But ya....it would certainly help/enhance the overall effects by taking Bupropion XR 150/300 tablets 1 every morning (mine was 150mg) and the Methylphenidate dose would surely be more robust in its effects

I had the larger tablets of Wellbutrin, the 300mg XR and felt very energetic and talkative, enhanced vigilance, mild stimulant, mood-boosting effects when I took first .....then reduced to 150mg daily as it was sufficient

Ritalin will just blow it out of the water in its DAT effects as Wellbutrin inhibits 23% of DAT more of a NET inhibitor....Ritalin inhibits 60-70% even 80% of DAT in high enough doses

50% DAT inhibition is required to experience euphoric properties

Bupropion 23% approx.
Methylphenidate 60-80% approx.
 
Yes, good point... I also have a script for Bupropion XR 150 and definitely it makes Ritalin more noticeable and effective

It's not uncommon to be prescribed both at same time

Just my tolerance increased.....Ritalin 50mg IR after breakfast is sufficient for 3-4h of noticeable effects ....60mg is my usual dose for a little muscle when taken with my Methadone 100mg after breakfast, and a few Gin & ginger ale cocktails (to increase d-MPH levels by 40%) which is the only desireable isomer targeting the DAT/NET .....so moderate ethanol consumption increases active d-threo-methylphenidate levels, enhancing its euphoric/mood-boosting properties

But ya....it would certainly help/enhance the overall effects by taking Bupropion XR 150/300 tablets 1 every morning (mine was 150mg) and the Methylphenidate dose would surely be more robust in its effects

I had the larger tablets of Wellbutrin, the 300mg XR and felt very energetic and talkative, enhanced vigilance, mild stimulant, mood-boosting effects when I took first .....then reduced to 150mg daily as it was sufficient....safety is paramount so its always best to be on the lowest dose possible, while still getting the desired therapeutic effects.

Ritalin will just blow it out of the water in its DAT effects as Wellbutrin inhibits 23% of DAT more of a NET inhibitor....Ritalin inhibits 60-70% even 80% of DAT in high enough doses

50% DAT inhibition is required to experience euphoric properties

Bupropion 23% approx.
Methylphenidate 60-80% approx.
 
I've been prescribed all three for ADHD along with extended release methylphenidate.

Vyvanse/Elvanse worked just as well as dexamphetamine for the most part and there was less of a crash when it wore off. They both give a considerable energy/motivation boost along with the general executive dysfunction stuff.

It depends how long your days are really. Evanse was perfect for a 9-5 but when I was doing shift work I preferred Dex because I never knew when my day was going to start/end.

I was on methylphenidate for years but didn't really like it. It doesn't give the same kick up the bum amphetamines do and the crash is worse. It could also make me feel quite depressed at times. Just my experience so don't be deterred.

Whether you're on phenidates or amphetamines tolerance will become an issue eventually if you're taking it every day. A week off is usually enough to get your tolerance near enough back to baseline.
Coming back to this, Vyvanse, do you recall your dose?

I've read so much about the correct dose making all the difference.

I found 20 mg ritalin in one dose was sufficient for about 5 hours.

Unsure if there's a comparable vyvanse dose.
 
Coming back to this, Vyvanse, do you recall your dose?
Well there are 20, 30, 40, 50, 60, and 70 mg dosages available. Most doctors start adult patients at 30 mg and adjust the dose as needed.

I've read so much about the correct dose making all the difference.
Yes, but it's kind of a moving target given how quickly tolerance sets in as these drugs build up in the nucleus accumbens. In time, it's necessary to allow dopamine downregulation to wear off if one wishes to restore the drug's full potential again.

I found 20 mg ritalin in one dose was sufficient for about 5 hours.
Yeah that's about right. Owing to the fact that Vyvanse/Lisdexamfetamine is a prodrug for amphetamine, and the body has to metabolize it first, it exhibits something of an extended release functionality. As such, do note that Vyvanse lasts 8 – 12 hrs instead of Ritalin's 3 – 5 hrs.

Unsure if there's a comparable vyvanse dose.
So 20 mg of Ritalin is equivalent to 50 mg of Vyvanse, roughly, just do note the difference in duration of effects.

I made you a chart to compare pharmaceutical stimulants. Ritalin comes in doses of 5, 10, and 20 mg only, FWIW. I'm pulling this data from https://www.adhdmedcalc.com/ btw, but I agree with it. Check it out:

Ritalin (methylphenidate)Adderall IR (dl-amphetamine*)Adderall XR (dl-amphetamine*)Vyvanse (lisdexamfetamine)Dexedrine (d-amphetamine)Desoxyn (Methamphetamine)
5 mg2.5 mg5 mg20 mg5 mg1.25 mg
10 mg5 mg10 mg30 mg10 mg2.5 mg
15 mg7.5 mg15 mg40 mg15 mg3.75 mg
20 mg10 mg20 mg50 mg20 mg5 mg
25 mg12.5 mg25 mg60 mg25 mg6.25 mg
30 mg15 mg30 mg70 mg30 mg7.5 mg
* Adderall is in fact a composite of 75% d-isomer to 25% l-isomer amphetamine

Hope that helps!
 

This chart claims 5 mg dexamphetamine is equal to 10 mg ritalin.

Sound right?

I was under the impression amphetamines were much more powerful.
one difference 10 mg MPH will kick in, if using first time, as a beast ime.
Dex 5 mg unnoticable but probably as i got used but never tolerant, even a 15 mg dose is subtler.
Then 10 mg MPH, but as that is crap tfor me. Doesnt work and side effecs pfoeh.
Useless, its the effectiveness imo that counts.

So though i wont feel it, its effects are there, watch me if i skip it.
Imo like the mirror image of MPH. Dextro-Amphetamine. Like Coke vs Speed/ dl-Amp.
 
Ritalin (Methylphenidate) is ideally combined with a specific SSRI to make its subjective reinforcing effects more “cocaine like” . I read a medical journal that studied the effects of Ritalin combined with an SSRI

If it were me….Id combine Ritalin with Tramadol (a weak atypical opioid + NE & SERT reuptake inhibitor) plus perhaps low dose Oxy-IR 10mg and a Xanax 1mg ….a fabulous oral cocktail
Don t, if you want some direct SRI action go for Kanna I read. No personal experience.
Not 100% sure if they are cocntraindicated, but Tramadol and MPH sound disastrous.

Risky, and as the one advising also mentions Oxycodone.
By itself in normal dosages a way less risky combo.
Means he aint done all the home work atm, no harm ment just reducing.

i for one have no clue of JohnBoy2000 s tolerance, to advise that coctail.

But would never combine MPH and Tramadol myself would i like em.
Wouldn t take em seperate though either. But thats not the point.
 
but Tramadol and MPH sound disastrous.
Methylphenidate does not exhibit serotonergic activity. Probably not an issue. Cocaine is serotonergic though, and so are Adderall, Vyvanse, Dexedrine, Amphetamine, and Methamphetamine – basically all amphetamines to a greater or lesser extent. Psychedelics even more so. But Ritalin differs from cocaine, for example, in this 5-HT activity difference. Otherwise they both act as reuptake inhibitors, cocaine a triple monoamine RI and Ritalin a double.

Regardless, I don't like Tramadol and personally think there are much better drugs out there to the point that I don't fuck with it at all, personally.

Dex 5 mg unnoticable but probably as i got used but never tolerant, even a 15 mg dose is subtler.
Then 10 mg MPH, but as that is crap tfor me.
Yeah apparently the medical community considers Adderall IR to be twice as potent as Ritalin and Adderall XR, which they consider equal in mg. Same for Dexedrine. Meanwhile for Desoxyn, aka meth, they have it down as being a fourth the potency of Dexedrine, and half that of Adderall IR. This makes me realize they're afraid of lawsuits and malpractice insurance rates skyrocketing. I don't think it's being based on Ki values and actual affinities for various neurotransmitter receptor sites. It's arbitrary and an outdated system of trial and error. What is needed is for pharmacogenomics to mature and reach critical mass so we can customize people's prescription to match their personal genetics and enzymology. But that tech is still on the horizon for now.
 
Using different stimulants on different days, is that something ADHD patients sometimes do?

i.e. ritalin on day 1, then vyvanse day 2, etc?

Supplementing one with the other, they're interchangeable?

.........

In relation to tolerance, does changing one for the other limit that in any way?

i.e. taking days off from vyvanse to use ritalin, could reset the vyvanse tolerance?
 
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Methylphenidate does not exhibit serotonergic activity. Probably not an issue. Cocaine is serotonergic though, and so are Adderall, Vyvanse, Dexedrine, Amphetamine, and Methamphetamine – basically all amphetamines to a greater or lesser extent. Psychedelics even more so. But Ritalin differs from cocaine, for example, in this 5-HT activity difference. Otherwise they both act as reuptake inhibitors, cocaine a triple monoamine RI and Ritalin a double.

Regardless, I don't like Tramadol and personally think there are much better drugs out there to the point that I don't fuck with it at all, personally.


Yeah apparently the medical community considers Adderall IR to be twice as potent as Ritalin and Adderall XR, which they consider equal in mg. Same for Dexedrine. Meanwhile for Desoxyn, aka meth, they have it down as being a fourth the potency of Dexedrine, and half that of Adderall IR. This makes me realize they're afraid of lawsuits and malpractice insurance rates skyrocketing. I don't think it's being based on Ki values and actual affinities for various neurotransmitter receptor sites. It's arbitrary and an outdated system of trial and error. What is needed is for pharmacogenomics to mature and reach critical mass so we can customize people's prescription to match their personal genetics and enzymology. But that tech is still on the horizon for now.
It was the PNS Nor-Epinefrine they both expose i was afraid. 1+1=3
1 allready was unpleasant, MPH or Tramadol by itself, Tramadol mainly at the start [ca. 2 hours]

So combining seems to me unpleasant, but i dont like either. Anymore.
Dextro-Amphetamine effect at Serotonine at therapeutic oral dose seems unnoticable to me.
edit: Tramadol does have a noticable effect on Serotonin, that i can feel.
Called it , wrongly, MDMA lite when it first kicked in.

"Methylphenidate actions include dopamine and norepinephrine transporter inhibition, agonist activity at the serotonin type 1A receptor" https://pmc.ncbi.nlm.nih.gov/articles/PMC8063758/

Both probably have some influence on Serotonin, but from both unnoticeable to me.
Tramadol has them i noticed especially the first hours in.
 
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Any thoughts experiences on ritalin with mirtazapine?

Potentiate its affect?
depends on tolerance and stuff. I have experienced that I need more stimulants after sleeping on mirtazapine to break through and lift off the drowsiness. But maybe there is more synergy once tolerance to antihistamine effects develop.
 
800px-Dextroamphetamine_concentration-time_curves_after_oral_administration_of_equimolar_doses_of_dextroamphetamine_and_lisdexamfetamine_in_adults.png


Graph taken from wikipedia.

Does this make sense?

From drugbank:

Following single-dose oral administration of lisdexamfetamine in pediatric patients with ADHD under fasted conditions, Tmax of lisdexamfetamine and dextroamphetamine was reached at approximately one hour and 3.5 hours post-dose, respectively.

The tmax of both lisdexamphetamine and dextroamphetamine are almost the same, with similar half lives?

Where lisdexamphetamine is dosed once daily, and dextroamphetamine dosed twice to three times daily?
 
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