Retigabine (Trobalt, Potiga) — General Discussion

an update:
i am definitely getting great results from this drug. i am typing this in relative silence. i have been keeping a daily journal, at some point i will organize my notes better, but that has been a challenge. this drug makes me 'pot high', and i am lucky to not have too demanding a job otherwise i would maybe have to do something creative (see my dosage post above). i am particularly lucid tonight, perhaps because i ate a decent sized meal. i still feel the effects most significantly on an empty stomach, and going forward i will be experimenting with meal sizes. i currently eat 2 meals a day, spaced in between the 3 dosages, so that i am pretty empty when i dose.

hoping to string a bunch more days of silence along, havent had any spikes or anything in the last 5 days, crossing fingers...
 
regarding Kv3, i did some cursory research, but mostly i poured all of my attention on retigabine and Kv7 for obvious reasons. I did find this article to be particularly interesting, if you can understand it, it will help you understand the differences between the two channels (HVA vs LVA).
http://www.ncbi.nlm.nih.gov/pubmed/20519310

also, i actually think retigabine is the better drug for our purposes, but i would have to do a lot more research on Kv3 to be more comfortable with that opinion. but from what i have read, i don't see why Kv7 modulators on their own could not help us.
 
I saw my gp togay (again:(!!!) and he had no clue about retigabine.
He tried to find it in MIMS, this is some sort of a book with all meds listed, but it didn't come up with anything, not even under other generic names.
Not sure if this is available here in Australia at all.

Val,
It should be the same for you there in OZ as it is here in NZ, ask your Doc or you can even do it, go to your equivalent of our PHARMAC on the web and type in retigabine in the search engine, if it comes up, you will be able to get it, but I suspect you would have to get a pharmacist to import it with your doctors prescription, that is what pharmac told me would be the protocol.
The Pharmac representative that I spoke to was very helpful so hopefully you get the same cooperation that I got.

Good luck.
 
from my understanding, the Kv7.4 don't factor much into the equation with retigabine. They require a far higher concentration level to do anything. They are located through out the brain (notably absent from the DCN), but are particularly concentrated in the basilar membrane and play a role in maintaining the high K levels of the endolymph. There is an interplay between the KV7.4 channels shuffling off the K that enters the hair cell, and to the Marginal cells that pump them back into the endolymph to keep the high K levels constant. here is a good picture of that:

F1.large.jpg


the main action of retigabine i think happens at the Kv7.2/3 hetermeric channels, which are much more sensitive to the drug, and which are located in the DCN. Problem is that these channels are located throughout the brain, hence the side effects.
 
here is my thoughts on dosage:

@Zimichael and I indeed are in agreement. I am not sure where we differ, perhaps I advocate greater speed, but I am really just using @Mpt as a benchmark.

Mpt did 1oomg TID for 3 days, 200mg TID for 3 days, and then maintenance at 300mg TID.

My taper up was:
100mg TID 3 days
150mg TID 2 days
200mg TID 2 days
300mg TID maintenance

I went up at that rate because at the very least I wanted to follow the one person for whom this worked. I made my jump from 200mg TID after only two days because I really was frustrated that I was not feeling much of anything. Also I was not sure exactly how to split a 300mg pill into 250mg. I suppose this wont be a problem for those of you getting smaller pills.

My thoughts on why someone should taper up fast was illustrated well by Zimichael - you want the drug to kick down the doors, not slowly lean on the door. The reason I think this is important is because of something called 'intrinsic' plasticity. Here is one link:
http://www.scholarpedia.org/article/Homeostatic_Regulation_of_Neuronal_Excitability
Basically your neurons are now firing at a 'new normal', which is the tinnitus state. Any change you try to make may be undone by homeostatic mechanisms to get back to the new normal, so slamming down the doors might be a good way to prevent that or at least reduce its effects. @cdog might be able to explain it better.

I think the dosage schedule for epilepsy can be completely ignored. Epilepsy for the most part is a genetic disease, and so this drug is not really being considered to cure it. In fact it is an add-on drug, which means most epilepsy patients are taking it with other epilepsy medication. This drug if used for tinnitus has the chance to cure us, so we don't have to take it permanently.

Secondly, epilepsy is something that can hit any time, so if you are epileptic, it is important to have it in your system most of the day, hence the 3 times a day spaced by 8 hours schedule. This is the part where I think we can do a bit of creativity, since we don't have epilepsy. I have missed my dosage in the morning by a few hours, and from what I understand the drug completely leaves your system after about 10 hours. This might be why it is hitting me the hardest in the morning, although there is probably other factors that affect that (I have wake-and-baked many times in my life - that means smoking marijuana first thing in the morning - and for those in the know that creates an intense high... perhaps something like that is at play here.

TAPER UP:
I have no problems with someone playing it safe and going on a slow taper up. I didn't feel anything until 600mg/day so I feel like I was just wasting the pills at a lower dosage level. The drug is dose dependent, and so if you don't have enough in your system, its not gonna do anything ('playing cards outside the door', like Zmike said). I think you should just go up rapidly to a point where you feel something, and then slowly push the envelope, and I think there are no rules for that. I think the informal goal should be to get to 900mg/day, and if 600mg/day is doing wonders for you then stay there. I suspect that many people will not find true silence until they get to 900mg/day and beyond.

MAINTENANCE:
Here is an example of how I take the drug. So I take my last dosage of the night at around midnight, and wake up at 8am to take the next one (my other dosage is at 4pm - 8 hour intervals). There have been days where I wake up late, which means that the drug is out of my system (I believe that the drug only stays in your system for 8-10 hours). This might be the reason that it hits me the hardest in the morning. On the days when I have this schedule perturbed, I improvise. So if I take my dose at noon, then I will take the second at 6pm, and the third at 2am (6 hour intervals). I don't know if this is a bad idea or not, I hope that we can get a pharmacist to weigh in this.

I suspect that some people will have to deviate from this if they have jobs. If it hits you hard in the morning, you might have to change your schedule to sleep right after work and then wake up much earlier to take your dose. The strong side effects seem to occur within 3-4 hours, and after than you may be better.
Another way to deviate is to take different dosages. say 200mg in the morning, and then 350mg a few hours before you leave work, and another 350mg at night. you get the picture, there will be a lot of experimentation with this drug because I suspect it will affect people differently.

another thing that strikes me is that maybe we can take it at 6 hour intervals. we would have to research this, and/or get a pharmacists opinion, but maybe if you were brave enough to do 1200mg, you could do 300mg X 4 times a day. or if you are doing 900mg, in order to function at work maybe space out lower doses in the morning and do the higher doses at night. The only problem with that is, as i said, this drug is dose dependant, so the light morning dosages might not even do anything. from my experience, it is not the fact that i am taking 900mg a day- it is the fact that i am feeling something whenever i put 300mg in my mouth, as opposed to any dosage lower than that.

Another question to ask is, do we need to be continuously on it? on some level we can say no, in that we are no epileptics. i see no reason why someone couldn't take the stuff on the weekends, and go on much lighter dosages on the weekdays during work. the crux of the issue though is that, i think it is important to let retigabine give you silence for an contiguously extended period of time (a few months, in the case of Mpt), so that the changes can be consolidated in your brain. in my opinion, it wont help if you are only getting relief some days of the week.

anyways, these are my thoughts on the subject, i invite people to look at this more carefully because I think dosage is key, and crafting a dosage schedule specific to tinnitus, and also specific to a given person, is important.
Thanks for the detailed info and updates. So awesome that it's working for you. Are you experiencing any other side effects such as the urinary retention or darker color? Any thoughts on blood work or urinalysis while on maintenance dose?
 
here is my thoughts on dosage:
Basically your neurons are now firing at a 'new normal', which is the tinnitus state. Any change you try to make may
be undone by homeostatic mechanisms to get back to the new normal, so slamming down the doors might be a good way to prevent that or at least reduce its effects. @cdog might be able to explain it better.

My theory is that the key may be to replace the 'normal level target' that homeostatic mechanisms 'go back to'. It could be that the changes which cause tinnitus, such as noise exposure, cause things like calcium (Ca+) concentration levels in the DCN to become really low (because of lack of neural input from damaged hair cells). Homeostatic mechanisms then kick in, and raise the Ca+ concentrations (through, say, closing/modifying the Kv+ channels), to go back to normal pre-noise-exposure levels. Problem is, they overshoot the mark, and raise them too much - making the DCN cell fire abnormally, causing tinnitus. And, in addition, now the cell's target for what's a 'normal' Ca+ level has been set too high, and so anytime you make temporary changes that deviate from that (via drugs, etc.) the homeostatic mechanisms will just reverse it back to the set high target.

So then to get a permanent change, you need to reset the target somehow - possibly by setting Ca+ levels to low (via a drug) and keeping them there for some time, making the cell adjust its target to those levels. Then when you go off the drug, the homeostatic mechanisms will not reverse anything because the target has been reset.

the crux of the issue though is that, i think it is important to let retigabine give you silence for an contiguously extended period of time (a few months, in the case of Mpt), so that the changes can be consolidated in your brain. in my opinion, it wont help if you are only getting relief some days of the week.

That agrees with what I said.
 
Would it be so bloody hard for retigabine people to run a trial?

Is it so hard to get 500 or so people with tinnitus, devide in groups and give them different doses?

I mean, seriously, how hard is that?
 
@valeri

Do you really think that you are going to get 500 people from this forum to take this drug? at specific dosage for experiment? at the same time?
All people want is to rid themselves of their T......but the side effects of this drug are awesome and to take it is not done lightly.
Are you part of the trial yet on retigabene? Were you able to get hold of some?
Do we know what longterm damage it does? to liver for example. or eyes. Are you valeri prepared to take these risks? You may be the first woman to do so on this forum.

More to the point, why are we not telling the World Health Organisation about these extreme methods that people are resorting to in order to continue living a normalish life? There is already and suspicously quickly a cure for Ebola which has affected far far fewer people globally than T. However, the other day on bbc tv, over 32 million pounds was raised to help with ebola - and Chris Martin of ColdPlay is part of this being involved in yet another rendition of Do They Know its Christmas track to raise the money. Geldoff is using scare tactics when he speaks saying that if dont deal with ebola then it oculd reach UK shores. Well Mr Geldoff T has already invaded just about every country in the world and a lot of it has to do with the loud levels of music volume from which you make your money. In other words, over 32 million pounds GBP and counting going up as poeple buy the track to eliminate ebola that has affected what 10,000 people worldwide, killing half of them. Yet for T which affects millions world wide - NOTHING! Yet this T problem is going to affect us, next genertion and each subsequent generation......so it is an explosion that has already happened. I think the WHO ought to be brought up to date with this.
We are to blame for this. We need to tell them! Otherwise all we are doing is sitting in our rooms patting each other on the back through these forums - how we suffer with T. Much the same as the celebrities pat each other well done on the back at these charity gigs, or trophy oscar gigs they hold for themselves....
Anyhow this is off topic so I apologise....just needed to vent as i face yet another awful day with this thing blaring in my head and yet again on 5 hours sleep which is better than the normal 3 or 4 hours.
Does the WHO realise how many people are affected and how disabling it is? Of course not cos we dont tell 'em....we just soldier on putting up with it....pathetic really arent we? Why dont we get good and mad and bombard the WHO with communications, info,anything!! to show that this is indeed a disaster disease that is growing in numbers everywhere.
Anyhow rant finished. Apologies.....
 
@locoyeti thanks for your thoughts on dosage, the more I read you and other people on this thread, the more I'm worried about those homeostatic mechanisms and convinced that a fast taper up is important, so I guess I'll do it that way instead of what I initially planned (so i'll soon be moving from 100mg TID to 200mg TID). But I don't think I'll be creative with my dosage (even if I have a job right now, but fortunately it's not a full time job and I can also work home a little bit), maybe I'm wrong but I'm also worried that taking different dosages (a lower one when I'm at work, a higher one at night etc. …) could reinforce in a way those homeostatic mechanisms, meaning we could need an uniform dosage/intake throughout the day to keep the doors open (well, if I managed to open it first of course …) … i'm scared a lower dosage at some point of the day could help neurons to go back to the tinnitus state (hope i'm not unclear)

Otherwise, I'm starting my third day on 100mg TID, so far no side-effects at all, and no noticeable effects on my T that I could suspect from retigabine : my first day was a bad one for me (T loudness something like 4) but it was not because retigabine (it started directly when I woke up even before I took my very first pill), yesterday was a good day (Tloudness=1 or 2, varying) and today also seems to be a good day for now (but it wouldn't be the first time for me to have a few good days in a row so …)

I'll keep u all posted
 
Tried importing powder from China, scouring online pharmacies and talking to friends of friends in Spain. I'm unable to get retigabine.

Would anyone be charitable enough to send a holiday package to the UK?

Please get in touch. A little peace for December.
Did you receive the powder?
 
I've read most of this thread and have started back at the beginning for a second time. Is there anyone trying this drug that had somatic symptoms or are able to manipulate the pitch though biting down on the jaw or bending their neck? If so, has retigabine helped? I'm trying to make a decision if I should try it or not. My T is bad and bilateral with a little H. I also have somatic T. Any info if this drug could possibly help would be appreciated.


Thanks
 
I think I speak for everyone in this thread who hasn't taken Retigabine:

I'm effing jealous of you all.

I'm going to a doctor today and inquiring about getting this stuff. As long as we recognize the downsides & side effects then I see nothing wrong with going ahead and using this to treat your tinnitus.
 
The big question is still out there , are the effects maintained after quitting the drug ?
We have yet to see that , if it is only temporary relief then its a big price to pay , side effects etc..
 
The big question is still out there , are the effects maintained after quitting the drug ?
We have yet to see that , if it is only temporary relief then its a big price to pay , side effects etc..
According to @Mpt his tinnitus remains low to off even months after taking the drug.

According to the scientific data posted in this thread, the drug should not only help the system work correctly in the short term, but actually stabilizes the system in the long term. So the effect SHOULD be maintained for everyone in the long run.
 
@RaZaH

I agree with you,
I would be on it by now if I knew that the side effects are not permanant or do not build up inside causing problems later on.
None of us are doctors here, or specialist in this field of neurology, at least most certainly not the ones taking Retigabene who are gambling really on other peoples info to make judgements about the drugs side effects based on what is also reported by the manufacturers when taken at lower doses for epilepsy and not tinnitus which requires apparantly much higher dosage.
Who knows what it is doing internally to the blood, the bones, the changes to these, the liver, the eyes, the brain, it is endless.
We are currently going only on what can be seen exteranlly as a side effect and we are not privy to the other effects internally.
Just like when people say that Tinnitus cannot kill. I would say that is incorrect. If a person remains in a state of agitation and lack of sleep due to their T, then heaven knows what that is doing to the makeup of the body internally.
Just a thought.....cos that is all i have. I am not medically trained either
 
It is hard to cure neurological disorder, better said is to controle it and menage it.

But medical don't let us write that tinnitus is disease.

We have to fight that tinnitus is DECLERED desease. And then get a tretment for it.

IF SOMEONE KNOW HOW TO GET TO DECLARE IT DESEASE WE SHOUD START A FIGHT. WE JUST SIT IN HOME. INSTEAD WE SHOULD GO TO COURT OF HUMAN RIGHTS AND FIGHT THAT IT IS DECLERED. AND THEN EVERY DESEASE HAS TO BE TREATED. inventing medication will go faster for disease, not simptm.


Some people kill themselves from tinnitus, instead to kill a doctor and themself.

I wonder why islam became radical. Well here is answer. You are tortured and other dont listen and dont listen and you are in pain, and then you start killin people who hurt you.
 
Ooooooooooops...That did not work so re-posting. Sorry!

Hey everyone who is serious about trialing this drug, I would take a very close look at post #2611 by Locoyeti! Then re-read it... From my viewpoint, I think he is right on about all this and offering some truly creative thinking and options on where we are at with our understanding and testing for Retigabine.
Given how different these ideas are from the "standard model" of taking this drug for epilepsy, it may be worth a moment of reflection...

For those who have been on board following the analysis and thinking since @Mpt first planted the seed here, you will appreciate the impressive amount of information gleaned by this group effort. The cumulative 'evolution of understanding' in what, why, where, and how Retigabine may, and does, affect Tinnitus has categorically changed from those initial days of dabbling in amorphous ideas and fear to the kinds of evaluative insights Locoyeti is proposing above. I emphasize evaluative! This evaluation has been both via the trialees and the considerable research everyone has uncovered and thrashed through. In short, it is "real". These results have a solid foundation even though our N sample of people testing is indeed small. That Retigabine is affecting T is not bullshit! It is not placebo! It makes sense!
I think some congratulations are in order for getting where we are today. I believe this ad hoc, and certainly not risk free experiment, is moving at light speed compared to 'traditional science'...After all, the only reason we are doing this is because it is not being done by anyone else!!! (Autifony's glacially correct approach excepted). KUDOS PEOPLE!!!

So @amandine ...indeed we may not be doctors and neurologists, but I actually have more confidence in what our cumulative understanding has come to on Retigabine than any other drug I have researched or taken. And I would now disagree that the "unknown side effects" are more risky than a zillion other drugs with bad news profiles a mile long. Hell, the drugs that trashed me were all 'legitimate' and the side effects did not go away. The side effects of Trobalt for me, did go away upon cessation. From my point of view, that is the only sample size I need. All drugs carry risk to someone, somewhere, thus we have to make our own choice about risk-reward.
Along with that is how we take the drug, and Locoyeti's (and my viewpoint too) are pretty radically different from the "establishment". Not because of a cavalier disregard for the facts with epilepsy, but because of everything I have explained above.

OK a few details... @locoyeti re the absorption clearance rates ( http://www.ncbi.nlm.nih.gov/pubmed/23342983 ):
~ Yeah food slows down Cmax to max of around 2 hours, so absorption is quicker on an empty stomach... Retigabine is rapidly absorbed with a median time to C(max) of 0.5-2.0 hours.
~ That clearance you are referring to is "half life"...Thereafter, plasma concentrations decline in a mono-exponential manner, with a median half-life of 6-8 hours.
~ Final plasma clearance when hardly any more left in you (supposedly) is about 10 days... Average total recovery in both urine and feces within 240 hours after dosing is approximately 98%.

By the way, this info sort of matched my experience coming off it. That > H seemed to take about 5 days after full Trobalt cessation to tone down to baseline, but maybe a few more days before I really felt like it was so.
I always took mine with a small amount of food and had no sense of variations diurnally at all between dose intervals. But we are all different!

Again, great info. and very clear reporting...Thank you!!! Zimichael
 
FYI, for anybody who hasn't seen, the Autifony sites are up and that thread is on fire with people trying to get in, including amanadine, who is looking for lodging in the UK. If anybody knows ANYBODY who qualifies, please point them that way. I let Freddie know, but don't know if he has hearing loss. Right now it looks like it's pretty hard to get in to any of the sites.
 
I would think a majority does, I just haven't read anyone who mentioned it while taking retigabine
You might try bogdan. He cites Cervical spondylosis as the cause of his tinnitus, so he'd seem the mostly likely candidate to have somatic effects. He's just not a frequent poster.

He's had tinnitus since 2012, too! People have been asking if anybody chronic has benefited, and there his report is on the user experience thread saying that he went from a 6/10 to a 2/10 with no major side effects.

@Bogdan, if you're around, can you give us an update on your condition, please?

@locoyeti, thanks for the clarification on dosage and Kv7.4. You make a very good argument and I'll take this up again if I manage to get my own supply.

@cdog thanks for the info on homeostatic mechanisms. Very helpful to my understanding of how these changes get consolidated.
 
I'm going to assume no one has had relief with somatic T yet, or have tried it with this particular type of symptom.

@Mikey Cliff I have some pulsatile tinnitus along with a constant hissing noise that's mostly in the left ear. The hissing noise becomes louder as the day goes by and is 'reset' by sleeping.
The pulsatile tinnitus could be described as 'somatic' I suppose. It comes and goes, sometimes it's not there.

Weirdly enough, retigabine seems to quieten the pulsatile tinnitus along with the 'normal' tinnitus.
Although I'm pretty certain that its a result of the general 'slowing down' that retigabine causes.
 
Someone I communicate with on another forum who got their tinnitus from benzo w/d, has this to say about Retigabine:

no effect < 400mg/day; at 4-600mg/day, it significantly reduced their T but also made them feel drugged out. They only stayed at that dose for a couple weeks, and when they withdrew they had notably worse tinnitus for about a week, after which it returned to its usual level.

It's certainly possible that they would have had a different effect after discontinuation if they had taken it longer, but who knows.

I'm going to have an EEG in a couple weeks, the Dr. I saw about this wanted me to do that. I still haven't actually taken the stuff, but I'm back into a bad place with T after having a couple good months where I didn't think about it much, so I may bite the bullet and take a stab at this at some point.
 
Yup...I tend to think MPT just got lucky ...who knows ?
Mpt lucked out in being practically immune to the side effects, but if you read the user experiences and this thread, the pattern is quite clear: everybody who has been on at least 700mg has reported a decrease in their tinnitus, some have reported improvement at lower dosages.

The only people to have had no positive effect that I recall are Zimichael and Hengist. Zimichael had supply problems and scheduling conflicts that made him have to stop at 600mg, and Hengist, frankly, is so unrelentingly negative in his posts that I don't know if he'd admit to any cause for optimism. Lep withdrew due to side effects but later tried again and had some success, and Viking had to stop early but had experienced some promising results.

On the question of whether the effect can become permanent, it's just too early to say. Christian78 has talked about taking a break. If and when he does he can comment on whether or not his levels stay where they are or not. Johno made a comment to the effect that he kept his improved state during a break.

@locoyeti, I apologize if I missed a post, but did you ever say if what you're taking is branded Potiga or Trobalt?

I'm doing research on importing and so far I don't see any reason an American with a prescription would have reason to be concerned about importing from Canada, the UK, or an EU country. The FDA says basically that while it is technically illegal, it's not worth time and money to stop anyone importing a substance that is for their own use and approved in the US. Even for unapproved substances they have guidelines that take into consideration compassionate reasons for turning a blind eye. They repeatedly say that their top concern is public safety, and in this case I actually believe it!
 

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