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IsabellaLinton
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12 Jan 2024, 1:33 am

Has anyone ever been prescribed Dexedrine?

I'd never even heard of it before. I take Vyvanse and Guanfacine for ADHD but I've never noticed that they do much. Sometimes I think they might make it worse. I'm not allowed Strattera or Ritalin because of my strokes.

My trauma therapist who has ADHD said she takes Dexedrine, and likes it a lot better than Vyvanse. It's faster acting and better absorbed, or something like that.

I have an appointment with my doctor next week so of course I'll ask her, but I'm just curious if anyone can share their experience with it.


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blitzkrieg
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12 Jan 2024, 8:20 am

I have only tried one medication for ADHD - Ritalin, and it was such a bad experience that I haven't bothered with any other stimulants.

My anxiety increased and I became actively paranoid with Ritalin (a known side effect).

Not cool.



IsabellaLinton
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21 Jan 2024, 8:58 pm

I started Dexedrine last Monday.
At first my doctor suggested 10mg up to three times a day.
I suggested 5mg because I usually need baby doses of all meds.

So far I've been taking 5mg just once.
One day I took two of them (10mg) once - since my doctor said 10 was OK.

I like it a LOT better than Vyvanse.
So far, no side effects.
I can kind of sleep except for when there's a febrile man in my bed. :lol:

I can't tell if it's working for EF yet, but it does help my mental health / PTSD.
I've certainly put it to the test already.


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Fenn
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21 Jan 2024, 9:46 pm

Dexadrine is a brand name for dextroamphetamine. I am surprised that you are given a contraindication for Ritalin but not for some of the others yot mentioned. Vyvance is a molecule that turns into Ritalin in the red blood cells, so it should be slower than Dex or Ritalin. Guanfacine works differently than the stimulants and usually helps people who are ADHD-H who still have trouble when taking Ritalin as an add on.

I added Guanfacine on top of Strattera but it didn’t seem to help so I stopped. I don’t think it would really help me with ADHD-i or EF but some studies suggest it might. Took Vyvanse on top of Strattera but got chest pains.
Tried Dex years ago but I get weird side effects on stimulants at supposedly therapeutic doses. So Strattera and black tea and Lexapro is my current regiment.

But

Everyone has different biochemistry and it isn’t the med that works but the med + your biochemisty.

Only way to to tell how it will work for you is to take it.

(Sad but true)


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IsabellaLinton
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21 Jan 2024, 10:06 pm

Thanks for the info.

I forgot to say that I'm still on Guanfacine too, just 1mg.
I'm allowed to take it at bed or in the day.
I've played around with both options but normally take it in the day.
I think it helps my brain fog.
I don't know for sure because I'm really bad at interoception.


Vyvanse was originally prescribed by the neuropsychiatrist who gave me this page:

Image

He circled Vyvanse and said I had to stay in that category of Amphetamines.
It was because of my history of stroke (one at the time, now two).
Apparently the Vyvanse group raises blood pressure but not heart rate.
Or maybe it's the other way around?
I can't remember.

After seeing him for the first year after dx he transferred my care to my GP.
I don't see him anymore.
My GP has had authority to do dosage adjustments or switch me off Vyvanse.

Last spring she added Guanfacine to the Vyvanse.
Now it's Dexedrine with Guanfacine.



PS -

Yes, Vyvanse was slower acting.
I never felt it actually kick in, and I was awake every night until 5 or 6 am.
Now I can just get a hit of it in the morning, do my work, and sleep at night.


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Fenn
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22 Jan 2024, 1:19 pm

Google

name-of-med mechanism of action

Sometimes the answers change over time so consider the source but also the date of the source.

Hope your meds help more than they harm or you find a good-enough regiment.


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DanielW
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22 Jan 2024, 1:25 pm

Dexedrine can actually be beneficial post-stroke, which surprised me.
https://www.ncbi.nlm.nih.gov/pmc/articl ... 20recovery.



Fenn
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23 Jan 2024, 7:49 am

I said Vyvance becomes Ritalin (Methylphenidate). My memory glitched. It becomes dextroamphetamine.

Lisdexamfetamine is an inactive prodrug that is converted in the body to dextroamphetamine, a pharmacologically active compound which is responsible for the drug's activity.[81] After oral ingestion, lisdexamfetamine is broken down by enzymes in red blood cells to form L-lysine, a naturally occurring essential amino acid, and dextroamphetamine.[24] The conversion of lisdexamfetamine to dextroamphetamine is not affected by gastrointestinal pH and is unlikely to be affected by alterations in normal gastrointestinal transit times.[24][82]

The optical isomers of amphetamine, i.e., dextroamphetamine and levoamphetamine, are TAAR1 agonists and vesicular monoamine transporter 2 inhibitors that can enter monoamine neurons;[74][75] this allows them to release monoamine neurotransmitters (dopamine, norepinephrine, and serotonin, among others) from their storage sites in the presynaptic neuron, as well as prevent the reuptake of these neurotransmitters from the synaptic cleft.[74][75]

Lisdexamfetamine was developed with the goal of providing a long duration of effect that is consistent throughout the day, with reduced potential for abuse. The attachment of the amino acid lysine slows down the relative amount of dextroamphetamine available to the blood stream. Because no free dextroamphetamine is present in lisdexamfetamine capsules, dextroamphetamine does not become available through mechanical manipulation, such as crushing or simple extraction. A relatively sophisticated biochemical process is needed to produce dextroamphetamine from lisdexamfetamine.[82] As opposed to Adderall, which contains amphetamine salts in a 3:1 dextro:levo ratio, lisdexamfetamine is a single-enantiomer dextroamphetamine formula.[81][83] Studies conducted show that lisdexamfetamine dimesylate may have less abuse potential than dextroamphetamine and an abuse profile similar to diethylpropion at dosages that are FDA-approved for treatment of ADHD, but still has a high abuse potential when this dosage is exceeded by over 100%.[82]

Source: wikipedia

https://en.m.wikipedia.org/wiki/Lisdexamfetamine


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Fenn
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23 Jan 2024, 7:58 am

DanielW wrote:
Dexedrine can actually be beneficial post-stroke, which surprised me.
https://www.ncbi.nlm.nih.gov/pmc/articl ... 20recovery.


Interesting - I suppose it is about laying down new patterns in the brain to route around any damage. Like some people use caffeine when studying.

It says it helps with training.

My dad had two big strokes (and probably many small ones).

You cannot regrow or repair lost brain cells but you can lay down new patterns in the existing healthy cells.


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IsabellaLinton
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23 Jan 2024, 8:31 am

Fenn wrote:
I said Vyvance becomes Ritalin (Methylphenidate). My memory glitched. It becomes dextroamphetamine.

Lisdexamfetamine is an inactive prodrug that is converted in the body to dextroamphetamine, a pharmacologically active compound which is responsible for the drug's activity.[81] After oral ingestion, lisdexamfetamine is broken down by enzymes in red blood cells to form L-lysine, a naturally occurring essential amino acid, and dextroamphetamine.[24] The conversion of lisdexamfetamine to dextroamphetamine is not affected by gastrointestinal pH and is unlikely to be affected by alterations in normal gastrointestinal transit times.[24][82]

The optical isomers of amphetamine, i.e., dextroamphetamine and levoamphetamine, are TAAR1 agonists and vesicular monoamine transporter 2 inhibitors that can enter monoamine neurons;[74][75] this allows them to release monoamine neurotransmitters (dopamine, norepinephrine, and serotonin, among others) from their storage sites in the presynaptic neuron, as well as prevent the reuptake of these neurotransmitters from the synaptic cleft.[74][75]

Lisdexamfetamine was developed with the goal of providing a long duration of effect that is consistent throughout the day, with reduced potential for abuse. The attachment of the amino acid lysine slows down the relative amount of dextroamphetamine available to the blood stream. Because no free dextroamphetamine is present in lisdexamfetamine capsules, dextroamphetamine does not become available through mechanical manipulation, such as crushing or simple extraction. A relatively sophisticated biochemical process is needed to produce dextroamphetamine from lisdexamfetamine.[82] As opposed to Adderall, which contains amphetamine salts in a 3:1 dextro:levo ratio, lisdexamfetamine is a single-enantiomer dextroamphetamine formula.[81][83] Studies conducted show that lisdexamfetamine dimesylate may have less abuse potential than dextroamphetamine and an abuse profile similar to diethylpropion at dosages that are FDA-approved for treatment of ADHD, but still has a high abuse potential when this dosage is exceeded by over 100%.[82]

Source: wikipedia

https://en.m.wikipedia.org/wiki/Lisdexamfetamine



Thanks for this. It's the same thing my Neuropsych and GP both explained to me about Vyvanse needing to be activated by amino acids and being long-lasting. It never worked for me other than keeping me awake nearly 24 hours a day, but during that 24 hours I was too much in my head with racing thoughts to get anything done. I tried higher and lower doses over the course of almost four years now, with the addition of Guanfacine last spring. I had gone as high as 50 mg but at the end went down to 20 mg and even that gave me catastrophic insomnia which prescription sedatives couldn't help.

As for it not improving EF my doctor thinks it's possible that I lack enough Lysine. I'm deficient in other amino acids so it's a possibility. I also consume a fair amount of acidic foods, and Vitamin C in vegetables, which is known to lessen its efficacy.

Regarding the higher chance of abuse with shorter-acting Dexedrine, I have no history of addictive behaviour and in fact tend to undertake rather than regular-take or overtake all meds. That's why I asked for 5 mg instead of 10, and so far I'm only taking it once a day instead of three times. Likewise I take 1mg of Guanfacine when I could take more. In fact there was more risk of me becoming drug dependent when I took Vyvanse, because I required strong prescription sedatives and even chugged Nyquil in desperate attempts to counteract the insomnia which Vyvanse inevitably caused. I also required Ativan when taking Vyvanse because it jacked me up so much I couldn't relax. That's a concern because benzos make me depressed. It became a vicious cycle which I'm glad to be off.


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IsabellaLinton
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23 Jan 2024, 8:38 am

DanielW wrote:
Dexedrine can actually be beneficial post-stroke, which surprised me.
https://www.ncbi.nlm.nih.gov/pmc/articl ... 20recovery.


That's really cool. I didn't know that. My own strokes weren't in the cerebral cortex. They were both in my Cerebellum, which is an extremely complex part of the brain with executive functioning control almost as skilled as the brain stem. My Neurologist said Cerebellums don't have neuroplasticity because their functions are so advanced, other parts of the brain can't replicate those abilities. Rather than having neuroplasticity I've had to do things in new ways relying on less-sophisticated parts of my brain that didn't learn how to adapt.

Hence, me today lol.


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