Daily oral spray vitamins

[KayPoole]

Are the Better You oral vitamin sprays better than tablet form? Should the iron still be taken 4 hours from thyroid meds?

[helvella Administrator Thyroid UK]

On the basis that some of the iron compounds will inevitably go down your throat, I think four hours away from levothyroxine is good advice for their iron spray - or any other iron supplement.

I don't know the full chemistry, but I'd be surprised if you need more than one microgram of iron to have a major impact on one microgram of levothyroxine. As iron supplements are dosed as many milligrams, far larger dosages than levothyroxine, quite possibly only a small fraction going down your throat could make a significant difference.