Dexamethasone phosphate (as sodium) helps most people with immune disorders or inflammation, but it may have unwanted side effects in a few people. All medicines can have side effects.

Symptoms of sodium phosphate or potassium phosphate overdose include the side effects listed under Section 6. Are there any side effects? but are usually of a more severe nature.

The FDA has warned that using more than 1 dose in 24 hours of over-the-counter sodium phosphate drugs to treat constipation can cause 'serious harm.' ...

FDA okays new sodium-phosphate bowel-prep pill Caroline Cassels April 17, 2006 April 17, 2006 ...

Judging by its biochemical effect, about 0.1–0.5 per cent of fluoride (as sodium fiuoride) must have been present in the sodium phosphate, but no quantitative chemical estimation was made.