Phosphate Salts

Are there any interactions with medications?

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Bisphosphonates
Interaction Rating: Moderate Be cautious with this combination.
Talk with your health provider.

Bisphosphonate medications and phosphate salts can both lower calcium levels in the body. Taking large amounts of phosphate salts might cause calcium levels to become too low.

Some bisphosphonates include alendronate (Fosamax), etidronate (Didronel), risedronate (Actonel), tiludronate (Skelid), and others.

Dosing considerations for Phosphate Salts.

The following doses have been studied in scientific research:

BY MOUTH:

• For raising phosphate levels that are too low or lowering calcium levels that are too high: Healthcare providers measure the levels of phosphate and calcium in the blood and give just enough phosphate to correct the problem.

As a supplement, the recommended daily dietary allowances (RDAs) of phosphate (expressed as phosphorus) are: Children 1-3 years, 460 mg; children 4-8 years, 500 mg; men and women 9-18 years, 1250 mg; men and women over 18 years, 700 mg.

The adequate intakes (AI) for infants are: 100 mg for infants 0-6 months old and 275 mg for infants 7-12 months of age.

Tolerable Upper Intake Levels (UL), the highest intake level at which no unwanted side effects are expected, for phosphate (expressed as phosphorus) per day are: children 1-8 years, 3 grams per day; children and adults 9-70 years, 4 grams; adults older than 70 years, 3 grams; pregnant women 14-50 years, 3.5 grams; and breast-feeding women 14-50 years, 4 grams.