Hi MM, I would not try iron because it is unlikely to help his spasms and it may create iron overload unless a person is genuinely anemic. Iron should not be thrown in willy nilly, besides it can cause some real constipation!
My leg spasms also went, for the first few days they were gone (I think the anesthesia impacts them) then they were there again, then gone almost completely (probably 90% gone). I weaned off my baclofen and requip at bedtime at about 5 weeks....
There are actually a couple of types of leg movement issues in people with MS you can have restless legs and you can have flexor spasms that bug you at night. It is difficult for a doctor to tell the difference based on patient description.
Lots of normal people have restless legs and it can be impacted by magnesium, or iron or even protein intake.
Flexor spasms are not impacted by those things and they are a sign of nerve damage. People with MS who are very progressed have a LOT of flexor spasms. Any irritating thing to the leg can bring them on, let's say you whack your big toe, this will send a "ouch" signal up to the spinal cord and this will send out a message to the leg that gets messed up and the whole leg will pull up into a "marching" type of movement--involuntarily. A normal person stubbing the toe does not do that. This flexor spasm can be so strong a person can actually strain a muscle! In very progressed persons even changing position so that the muscles get stretched can result in a reflexive spasm as the muscle "objects" to being stretched. It can be difficult to move an MS patient who is wheelchair bound from the chair to the bed, it can involve many steps and the legs and arms can stiffen out dramatically making it hard to even accomplish.
Very progressed MSers who need full time care can be wracked with spasms as they try to move or change position, it can be the single reason they can no longer care for themselves. It is why the pharma offers an implantable baclofen pump: to deliver small doses of baclofen right to the spinal cord to get the medication where it is needed without as much side effect. It may result in a weaker person, but that is more manageable than a constantly spasming one.
I describe this in detail so people can see that there is a progression for people with MS: in the beginning you do not have flexor spasms, in the end you do when MS takes its natural course. As you move through time, the flexor spasms gradually evolve and become more and more a part of your life. In the early stages they are a lot like restless legs....In the end they are misery itself as spasms dominate every aspect of life.
I know from private message that Holly's spasms did not go away with her first procedure. Mine did, and I felt pretty bad that hers did not. She DID end up getting a second procedure, perhaps she would have had them go after that but no one knows, so we have at least one example of a person who did not have relief there.
I just want to make sure we are not perpetuating an idea that spasms will always go away with this procedure. We do not know that....
I am an EDSS6 Holly was wheelchair bound.
sorry to be Debbie Downer, I am trying to help

I'm not offering medical advice, I am just a patient too! Talk to your doctor about what is best for you...
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