Thanks....Jon
Lola in Hamilton
--Tom
What I don't know is if the hydrochloride salt contributes another 12.5
mg or if the dosage outside of the US is a lower dose.
--Tom
goto the ship doctor, they have the patch, passengers seem to agree it
works. looks a little funny though!! and what about the tan line?
The active ingredient in Bonine is meclizine hcl 25 mg.
The patch is available only with prescription... and is contraindicated for
many people with various ailments.
Meclizine hcl is the safest you can take which is 100% effective.
Leon
It's actually quite possible that meclizine is an insoluble material
(I'm not positive, I'm just guessing - Pfizer scientists would know for
sure). And it has a certain molecular weight. Adding the salt to part
of the chemical structure would do 2 things. Make it water soluble and
increase the molecular weight. But it's not an inactive ingredient,
it's part of the chemical structure.
So it is quite possible that one weight represents pure meclizine, while
the other represents the meclizine hydrochloride which is water
soluble. And therefore 2 different weights for the same product. One
is the weight of the powder, and the other is the equivalent weight of
just the part of the powder that works.
And hydrochloride isn't the only thing used to make compounds water
soluble. Sometimes you may see a sulfate, a bisulfate, sodium, a
phosphate, etc. after the active ingredient's name.
The "inactive" ingredients you mention serve to make the compound
compressible into a tablet form. Those are compounds like Avicel, corn
starch, etc., which have "rough edges" that grab and lock together when
you need to make a tablet. [tablet and capsule are the correct forms...
not "pill"] Inactive ingredients typically range from as low as 20% to
as much as 80% of the total tablet weight. But that's a whole different
thing.
The PDR of US pharmaceuticals (the 1999 edition I have at work) does not
show a 12.5 mg dosage. It only shows the 25 mg. But you can break the
tablet in half.
--Tom