What is Sodium Phosphate used for?

Sodium Phosphate is indicated for: Hypophosphatemia, Hypophosphatemia (DKA, refeeding).

Which species have cited Sodium Phosphate dosing data?

Sodium Phosphate dosing in the ExoticRx formulary covers 2 species: Cat (Domestic), Dog (Domestic).

Is Sodium Phosphate a controlled substance?

Sodium Phosphate is not federally scheduled in the US. Controlled-drug status differs by country — verify your local rules.

What is the constant rate infusion (CRI) dose for Sodium Phosphate?

Sodium Phosphate has 2 CRI dose rules in the ExoticRx formulary, covering Cat (Domestic), Dog (Domestic). See the CRI section on this page for routes, dose ranges, and source citations.

Sodium Phosphate

US brand names:Fleet Phospho-soda

Calculate dosage

Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Sodium Phosphate is dosed at 0.01–0.03 mmol/kg/hr IV continuous rate infusion (CRI) in cats, per Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label). Verify against current literature before clinical use.

Drug Class

Miscellaneous

Routes

IVPO

Indications

HypophosphatemiaHypophosphatemia (DKA, refeeding)

Mechanism of Action

Provides phosphorus essential for ATP synthesis, bone mineralization, acid-base balance, and cell membrane integrity.

Side effects & warnings

Hypocalcemia, hyperphosphatemia, and soft tissue calcification risk with rapid infusion. Monitor calcium and phosphorus levels. Reduce dose in renal impairment.

Species with Sodium Phosphate dosing data (2 dose rules)

Cat (Domestic)Dog (Domestic)

Species references:All Cat (Domestic) drugs All Dog (Domestic) drugs

Evidence levels across 2 dose rules

Moderate×2

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by a published source

· Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)

Constant rate infusion (CRI)

Sodium Phosphate CRI dose rules from the ExoticRx formulary. Verify against current literature before clinical use; CRI rates differ from bolus dosing and route, dilution, and monitoring matter. Sign in for the complete per-species CRI protocol set.

Species	Route	Rate	Indication	Evidence	Source
Cat (Domestic)	IV	0.01–0.03 mmol/kg/hrcontinuous rate infusion (CRI)	Hypophosphatemia (DKA, refeeding)	Moderate	Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)
Dog (Domestic)	IV	0.01–0.03 mmol/kg/hrcontinuous rate infusion (CRI)	Hypophosphatemia	Moderate	Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)

Cat (Domestic)

Sample dosing (2 of 2 cited rules)

A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.

Species	Route	Dose	Frequency	Evidence	Source
Cat (Domestic)	IV	0.01–0.03 mmol/kg/hr	continuous rate infusion (CRI)	Moderate	Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)
Dog (Domestic)	IV	0.01–0.03 mmol/kg/hr	continuous rate infusion (CRI)	Moderate	Plumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)

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View Plans

0.01–0.03 mmol/kg/hrcontinuous rate infusion (CRI)

Hypophosphatemia (DKA, refeeding)

ModeratePlumb's Veterinary Drug Handbook, 10th ed. (2023), p.1021 (PDF 1048), monograph 'Phosphate (Potassium-, Sodium-), IV', DOGS/CATS — Hypophosphatemia (extra-label)

Dog (Domestic)IV