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Dr. Bob is Robert Hsiung, MD,
bob@dr-bob.orgShown: posts 1 to 3 of 3. This is the beginning of the thread.
Posted by Bekka H. on April 15, 2002, at 23:34:20
Today I bought some sublingual Vitamin B-12 from Trader Joe's. I took one and it dissolved under my tongue instantly. The minute I put it under my tongue, it turned from a pill to a powdery substance. Is this the way sublingual Vitamin B-12 is supposed to dissolve? I thought it would take longer than that.
Thanks.
Bekka
Posted by Ron Hill on April 16, 2002, at 12:40:37
In reply to Sublingual Vitamin B-12 - question, posted by Bekka H. on April 15, 2002, at 23:34:20
> Today I bought some sublingual Vitamin B-12 from Trader Joe's. I took one and it dissolved under my tongue instantly. The minute I put it under my tongue, it turned from a pill to a powdery substance. Is this the way sublingual Vitamin B-12 is supposed to dissolve? I thought it would take longer than that.
Bekka,I've taken several brands of sublingual B-12 and I've never experienced what you report. IMHO, it seems that if the tablet dissolves very quickly, a higher percentage of the tablet will be swallowed with the saliva and, therefore, the purpose of holding it under the tongue would be compromised to some extent. (As you know, the purpose of sublingual administration is to transfer the B-12 directly to the blood stream via the thin membrane beneath the tongue and, thereby, circumvent the low rate of B-12 absorption via the digestive system).
But that's just my opinion which may or may not have any true validity.
-- Ron
Posted by cmcdougall on April 19, 2002, at 11:05:04
In reply to Re: Sublingual Vitamin B-12 - question » Bekka H., posted by Ron Hill on April 16, 2002, at 12:40:37
I take the liquid sublingual B-12 - I hold it under my tongue for 60 seconds before swallowing. I wonder now if thats long enough to be absorbed?
> > Today I bought some sublingual Vitamin B-12 from Trader Joe's. I took one and it dissolved under my tongue instantly. The minute I put it under my tongue, it turned from a pill to a powdery substance. Is this the way sublingual Vitamin B-12 is supposed to dissolve? I thought it would take longer than that.
>
>
> Bekka,
>
> I've taken several brands of sublingual B-12 and I've never experienced what you report. IMHO, it seems that if the tablet dissolves very quickly, a higher percentage of the tablet will be swallowed with the saliva and, therefore, the purpose of holding it under the tongue would be compromised to some extent. (As you know, the purpose of sublingual administration is to transfer the B-12 directly to the blood stream via the thin membrane beneath the tongue and, thereby, circumvent the low rate of B-12 absorption via the digestive system).
>
> But that's just my opinion which may or may not have any true validity.
>
> -- Ron
This is the end of the thread.
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