Potassium Acetate
Potassium Acetate is an injectable electrolyte supplement that provides potassium to treat or prevent low blood potassium levels (hypokalemia). It is primarily used in hospitalized patients receiving IV fluid therapy who cannot take oral potassium supplements.
Potassium Acetate is an IV electrolyte supplement used to treat and prevent low potassium levels in patients unable to take oral formulations.
Key facts at a glance
- ATC
- B05XA17
- RxNorm
- 54987
- Generic
- Potassium Acetate
- Class
- atc-b05
- Brands
- Plasma-Lyte 56 in 5 % Dextrose, Nutrilyte, Nutrilyte II, Normosol-M, Aminosyn 3.5 % M, Sulfite Free
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- injection, solution
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Dosage and administration
- Usual dose
- 500mg twice daily
- Maximum
- consult physician
- Frequency
- every 12 hours
- Instructions
- Follow physician instructions
- Duration limits
- as prescribed
- Monitoring
- standard
- Usual dose
- 250mg twice daily
- Maximum
- consult physician
- Frequency
- every 12 hours
- Instructions
- Follow physician instructions
- Duration limits
- as prescribed
- Monitoring
- standard
- Usual dose
- 400mg daily
- Maximum
- consult physician
- Frequency
- once daily
- Instructions
- Follow physician instructions
- Duration limits
- as prescribed
- Monitoring
- standard
Overdose information
Special Populations
10 groupspregnancy
first trimesteruse lowest effective dose
use only if clearly needed and benefits outweigh risks, avoid routine supplementation
regular serum potassium monitoring, fetal monitoring
Use with caution and monitor for adverse effects.
pregnancy
third trimesteruse lowest effective dose
monitor closely, especially in preeclampsia or diabetes
frequent serum potassium checks, fetal heart rate monitoring
Use with caution and monitor for adverse effects.
lactation
breastfeedingno adjustment typically required
generally considered compatible with breastfeeding, continue monitoring
monitor maternal serum potassium levels
pediatric_age
neonatesreduce dose, use with caution
use only under strict medical supervision, appropriate for severe hypokalemia
frequent serum potassium and renal function monitoring
Use with caution and monitor for adverse effects.
pediatric_age
childrenweight-based dosing required
can be used for treatment of hypokalemia with appropriate monitoring
regular serum electrolyte monitoring
geriatric
elderlyreduce dose, start low
use cautiously due to age-related renal function decline
frequent serum potassium and renal function monitoring
Use with caution and monitor for adverse effects.
renal_impairment
mild renal impairmentreduce dose, monitor closely
use with caution, monitor potassium levels frequently
frequent serum potassium and creatinine monitoring
Use with caution and monitor for adverse effects.
renal_impairment
severe renal impairmentavoid or use minimal dose only
generally contraindicated in severe renal impairment or anuria
frequent monitoring if used, consider dialysis
Use of this medication in this population requires careful consideration of risks and benefits.
hepatic_impairment
mild hepatic impairmentno specific adjustment needed
can be used with standard monitoring
monitor serum electrolytes including potassium
alcohol_users
chronic alcohol usemay require careful titration
common cause of hypokalemia and hypomagnesemia, assess electrolytes
frequent electrolyte monitoring, especially during withdrawal
Use with caution and monitor for adverse effects.
Statistics and clinical data
Primary function
Potassium acetate provides potassium ions for electrolyte replacement therapy
Common uses
Used in plasma expanders and nutrition solutions including Plasma-Lyte 56, Nutrilyte, and Normosol-M
Drug class
Mineral salt used for potassium supplementation
Route of administration
Administered via IV in approved hospital settings
Treatment and prevention of hypokalemia (low blood potassium), particularly in patients receiving intravenous fluids who cannot take oral supplements. May be preferred over potassium chloride when chloride intake should be limited, such as in metabolic alkalosis.
Provides bioavailable potassium, an essential electrolyte critical for cellular function, nerve conduction, muscle contraction (especially cardiac muscle), and acid-base balance. The acetate component may also contribute to bicarbonate generation.
Must be administered intravenously under medical supervision with careful monitoring of serum potassium and cardiac function. Contraindicated in hyperkalemia, severe renal impairment, and conditions predisposing to elevated potassium. Rapid infusion can cause fatal cardiac arrhythmias.
Contraindications
Conditions and patient states where this medication should be avoided or used with caution.
Do not use (1)
Known allergy to this medication or its components
Use caution (1)
Consult healthcare provider for benefits vs risks assessment
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 24, 2026. · Read our editorial policy