ExoticRx · exoticrx.com/drugs/magnesium-sulfate-injectable
US brand names:MgSO4
Magnesium Sulfate Injectable is dosed at 0.15–0.3 mEq/kg IV CRI over 12-24 hours in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. Verify against current literature before clinical use.
Essential cofactor for >300 enzymatic reactions. Membrane stabilizer, smooth muscle relaxant, and NMDA receptor antagonist.
Rapid IV push can cause hypotension, bradycardia, respiratory depression. Monitor reflexes and respiratory rate. Reduce dose in renal impairment.
Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
Magnesium Sulfate Injectable 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 | 0.15–0.3 mEq/kgCRI over 12-24 hours | Hypomagnesemia, refractory arrhythmias | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
| Dog (Domestic) | IV | 0.15–0.3 mEq/kgCRI over 12-24 hours | Hypomagnesemia, refractory ventricular arrhythmias | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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.
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.
Hypomagnesemia, refractory arrhythmias
Hypomagnesemia, refractory ventricular arrhythmias