Clinical beta

FMBM is currently in clinical beta. Content is for professional review/testing and must not replace local protocols, senior clinical judgment, or official prescribing references.

Drug Monograph

Potassium-Chloride

Preparation Calculator

USE IF: Hypokalemia, potassium replacement

AVOID IF: Hyperkalemia, untreated renal failure, inability to monitor safely

Potassium Chloride (KCl)

Electrolyte replacement (potassium repletion)

AdultPediatricERICUElectrolytesHigh-yield

Indication

Hypokalemia • Potassium replacement

At a glance

INDICATIONS (CORE USE)

- Hypokalemia

ADULT DOSE (STANDARD)

Oral or IV depending on severity

MAX DOSE

Protocol- and monitoring-limited; prioritize controlled infusion and reassessment

Route

PO • IV

PEDIATRIC DOSE

Protocol-based

Do not miss

Must-not-miss safety points

Major warning

- NEVER give IV push due to fatal arrhythmia risk - Rapid infusion can cause cardiac arrest - High-dose IV therapy requires close ECG monitoring - Renal function determines replacement safety

Institutional protocol required

Dosing for this medication is not a substitute for your hospital order set, pharmacy verification, or specialty protocol. Use only with an approved institutional pathway, continuous monitoring, and independent double-check where policy requires.

FMBM beta: decision support only — not medical advice or a prescribing system.

Indications

INDICATION: Hypokalemia • Potassium replacement

Primary

  • Hypokalemia

Institutional protocol required

Dosing for this medication is not a substitute for your hospital order set, pharmacy verification, or specialty protocol. Use only with an approved institutional pathway, continuous monitoring, and independent double-check where policy requires.

Numeric examples in this monograph are illustrative only when present — always follow your verified institutional protocol and product labeling.

FMBM beta: decision support only — not medical advice or a prescribing system.

Dosing

STANDARD (ADULT PO)

MILD: oral replacement preferred MODERATE-SEVERE: IV replacement via controlled infusion

ADULT DOSE

STANDARD (ADULT): MILD: - Oral replacement preferred MODERATE-SEVERE: - IV replacement using controlled infusion

PEDIATRIC DOSE

Protocol-based

MAX DOSE

Protocol-defined by severity, infusion setting, and monitoring capacity

Practical Note

- Dose depends on potassium level and clinical context - Avoid rapid correction - Combine oral and IV replacement in selected cases

Warnings

Clinical warnings

  • Use only with an approved institutional order set and pharmacy verification — this monograph is clinical decision support, not standalone prescribing authority.
  • Hyperkalemia from overcorrection
  • Arrhythmias
  • IV irritation and phlebitis
  • Renal impairment can cause accumulation

Adverse effects

  • GI irritation (oral)
  • Pain at IV site

Contraindications

  • Hyperkalemia
  • Severe renal failure without monitoring
  • Known hypersensitivity

Drug interactions

  • ACE inhibitors and ARBs can increase potassium
  • Potassium-sparing diuretics increase hyperkalemia risk
  • Other potassium supplements have additive risk

Special populations

Pediatrics

Protocol-based

Pregnancy

Cardiac disease: ECG monitoring required in high-dose IV replacement Pregnancy/

Lactation

Use when indicated with standard electrolyte and fetal/maternal monitoring principles.

Renal impairment

High risk of accumulation; monitor potassium and renal function closely.

Hepatic impairment

No primary hepatic adjustment; focus on total clinical context and monitoring intensity.

Elderly

Higher risk of arrhythmia and renal decline; titrate cautiously with frequent checks.

Administration

- IV: dilute and infuse slowly - NEVER IV push - Use infusion pump - Oral preferred when possible

Monitoring

  • Monitor: - Potassium level - ECG (moderate-severe cases) - Renal function
  • Recheck: - After replacement doses - Frequent labs during IV therapy
  • Hold / reassess: - Hyperkalemia - ECG changes - Renal deterioration

Overdose / toxicity

Clinical Picture

Hyperkalemia and arrhythmias

Immediate Actions

Stop potassium and treat hyperkalemia (e.g., calcium, insulin, and adjunct therapies per protocol)

Antidote

Hyperkalemia management protocols

Decontamination

Supportive management with urgent electrolyte-guided correction

Escalation

Escalate for malignant arrhythmias, severe hyperkalemia, or hemodynamic instability

Clinical pearls

Common mistakes, resistance logic, and bedside traps

High-Yield

  • IV push potassium is a fatal error
  • Oral replacement is preferred when feasible

Clinical

  • Replace gradually and reassess with labs/ECG

Safety

  • Most dangerous error is rapid IV infusion

Pharmacy Tool — restricted during beta

Potassium Chloride Safety Panel

  • Potassium chloride is a HIGH-ALERT medication.
  • NEVER give IV potassium chloride as a bolus or IV push.
  • Always dilute IV potassium and administer via controlled infusion.
  • Verify concentration before administration.
  • Monitor ECG and serum potassium in high-risk patients.
  • Use caution in renal impairment.
  • Double-check dose and route before administration.

Compounding calculator withheld

Oral potassium compounding is not available in this beta release. Use institutional electrolyte protocols and pharmacy-prepared products only.

Pharmacokinetics

- Rapid distribution with IV use - Renal excretion

Mechanism of action

- Replaces potassium required for cellular and cardiac function

Common brand names

Saudi Arabia

KCl infusion (hospital)

Global

KCl, Potassium chloride, (placeholder — verify local formulation)

Common trade names are curated examples only — formulations and availability vary. Verify the exact product name with your local pharmacy and national regulator before prescribing or dispensing.

Country practice notes

Global data (no country-specific data available)

  • Follow local antimicrobial stewardship policy, hospital formulary, and national resistance guidance.
  • Confirm dosing, stock, and restrictions with institutional pharmacy and current product labeling.

References

Saudi Arabia

  • SFDA (Saudi Food & Drug Authority)
  • Saudi National Formulary / MOH (where available)

International

  • WHO Model List of Essential Medicines (verify current edition)
  • US FDA or EU EMA product information (when national SmPC is unavailable)
  • Product labeling (potassium chloride)
  • Local electrolyte replacement and hyperkalemia protocols