Sodium glycerophosphate, sold under the brand name Glycophos, is a medication used to supplement phosphate.

[3][4] Sodium glycerophosphate is an organic phosphate salt.

[5][3][6] It is an unapproved medication in the United States that was used as a substitute for inorganic phosphate during a drug shortage.

[4] The substance is a mixture of disodium glycerol 1- and 2-phosphates, which have different amounts of water of crystallization; the total amount is 5+1⁄2 H2O per glycerol phosphate molecule.

It is a white to off-white powder which may or may not be crystalline, has no discernible odor and tastes salty.