On 3 February 23 I had an iron infusion (at a private clinic), and I have finally been able to get a blood test (on the NHS) to see what my serum ferritin and transferrin levels are now.
My serum ferritin level has increased from 50.0 to 406.7. My transferrin level is down from 2.26 to 1.74. I was rather confused by these results!
I did not intend to start reducing my Gabapentin dosage until I got results back that showed I was up to the appropriate levels. As it happened, I went away in mid March with insufficient pills to keep up the 600mg dosage for the 3 nights we were away, and so for those night I went down to 500mg. I suffered no ill effects, so a week later I went down to 400 mg. Again, a week later I reduced it to 300 mg, still with no return of restless legs, However, when I tried to reduce to 200mg the following week, the restlessness was very bad indeed, keeping me up until 4 am.
So I wrote to the consultant who gave me the infusion for his advice as to what I should do next, as I really would like to get off the Gabapentin, and all my GP has said is that I'm now 'normal'!
This is what my consultant replied; "Your results are perfect - nice Ferritin levels so you have good stores of iron, please repeat in a year (and ignore the transferrin level)." He went on to say that he was sorry to hear that I still had restless legs when I tried to decrease the gabapentin further, and suggested that I stay on the reduced dose for a bit longer then try to reduce it further slowly.
What I puzzled to know is this: why can my transferrin levels now be ignored??