Products. The most commonly prescribed magnesium
Supplement is Magnesium Oxide. Magnesium Oxide comes in
Strengths of 250mg, and 400mg. Mag Tab SR is one magnesium
Supplement that is available that is sustained released.
Mag Tab SR comes in one strength of 84mg/tablet. Slow Mag
Comes in one strength of 64mg/tablet and also has calcium
128mg/tablet. Slow mag is Magnesium Chloride and is
Enteric coated to prevent release in the stomach and decrease GI
Upset. Once you have decided on what
Product to take you will start out day 1 by taking the
RDA. See the example below:
1 Jill* is a migraineur
Who has decided to take Magnesium to help with her
Migraines. She is 160 pounds. The RDA is
6mg/Kg. To convert pounds to kg you divide the weight in
Pounds by 2.2 which will give you the Kg. 160 divided by 2.2
= 72kg. 72kg x 6mg = 432mg which is the RDA for Jill.
So on day 1 Jill would take 1 Mag Oxide 400mg or 5 Mag Tabs
Or 7 Slow Mag’s. You can take these in divided doses.
So she could take 2 Mag Tabs in the am, 1 at Lunch time and 2 at
Night. Any of the above combinations would give her the RDA
For Mg.Swallow tablets whole with a
Full glass of water.Take the Mag Oxide, Slow Mag
And Mag Tab SR with food.When taking the Mag Tab SR –
Scored tablets may be broken without affecting the 12hr
And tablets should not be broken.
And how should I increase the dose?
Are still having symptoms (Migraines, leg cramps, ect) and you
Have a constipated bowel movement increase the next dose by
2 Jill is taking her above maintenance dose of 5
Tablets of Mag Tab Sr. She develops a migraine on day 3 and
Also has noticed lately that her stools have become less
Frequent. Jill would then increase her dose to 6 tablets/day
And continue to increase it each day as long as she was still
Having constipation and migraines. If Jill was taking the
Mag Oxide she could also try taking one Mag Tab since it is
Sustained released and would give her 7mg/hour of Mg. You can mix
The above salts.
An increase of
The magnesium dose is taken when a new medication known to
Cause an increase in urinary magnesium excretion causes
Symptoms. (Check the Urinary
Magnesium Wasting Page for a list of drugs that can cause
Urinary magnesium wasting. If you are on any of them and your
Symptoms return then that would be an indication to increase
Your next Mg dose).
An increase in
Disease specific conditions that cause changes in magnesium
Metabolism; hyperglycemia documented by self monitoring of
Blood sugar, an obvious increase in stress, ect.
With the above
Symptoms the maintenance dose should be increased by 25%.
Example 3 Jill
Is taking her maintenance dose of 432 Mg per day. She gets a
Sore throat and her doctor puts her on Zithromax which is a drug
That is known to cause Urinary Mg wasting. She would then
Increase her maintenance dose by 25% which is 432 x25=108mg.