Magnesium Sulfate Injectable for Cat
Cat · Felis catus · typical adult weight 2.50–7.00 kg
Magnesium Sulfate Injectable is used in cat for Hypomagnesemia, refractory arrhythmias. Routes documented in cat: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Magnesium Sulfate Injectable in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: MgSO4
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 0.15–0.3 mEq/kg | CRI over 12-24 hours | Until serum Mg normalized | Hypomagnesemia, refractory arrhythmias | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
Continuous-rate infusion (CRI) in cat
One of the cited rules is a continuous-rate-infusion regimen: IV 0.15–0.3 mEq/kg CRI over 12-24 hours. CRI regimens are delivered as a continuous infusion rather than discrete doses — verify the rate against the cited source before use.
Need the exact dose for your patient?
These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Mechanism of action
Essential cofactor for >300 enzymatic reactions. Membrane stabilizer, smooth muscle relaxant, and NMDA receptor antagonist.
Side effects & warnings
Rapid IV push can cause hypotension, bradycardia, respiratory depression. Monitor reflexes and respiratory rate. Reduce dose in renal impairment.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Miscellaneous drugs with cat dosing
Magnesium Sulfate Injectable dosing in other species
Why a species-specific page? Magnesium Sulfate Injectable pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.