Natriumhydrogencarbonat-Lösung Fresenius Kabi Deutschland (Sodium Hydrogen Carbonate)

Sodium hydrogen carbonate is used in clinical settings to address disorders of acid‑base balance and related electrolyte disturbances.

• Metabolic acidosis: raises systemic pH by providing bicarbonate ions, helping restore normal acid‑base status.
• Severe hyperkalemia (as part of therapy): shifts potassium into cells and supports cardiac stability when combined with other measures.
• Alkalinization of urine: increases urinary pH to promote excretion of certain toxins or to prevent crystal formation.

• Sodium hydrogen carbonate dissociates to release bicarbonate ions, which combine with excess hydrogen ions in the bloodstream to form carbonic acid. This reaction is catalyzed by carbonic anhydrase, ultimately producing water and carbon dioxide that are exhaled, thereby raising systemic pH and correcting metabolic acidosis.

Adverse reactions may occur with intravenous administration of sodium hydrogen carbonate.

Common Side Effects

• Mild pain or irritation at the injection site.
• Transient hypernatremia due to sodium load.
• Mild metabolic alkalosis if over‑corrected.
• Fluid overload in patients with limited cardiac reserve.
• Hypokalemia secondary to intracellular potassium shift.

Serious or Rare Side Effects

• Severe metabolic alkalosis leading to respiratory depression.
• Pulmonary edema in volume‑overloaded patients.
• Cardiac arrhythmias from electrolyte disturbances.
• Severe hypernatremia causing neurologic symptoms.
• Anaphylactoid reactions (rare).

When using sodium hydrogen carbonate injection, clinicians should observe several safety measures.

• Assess acid‑base status: verify indication and baseline pH before infusion.
• Monitor electrolytes: check serum sodium, potassium, and calcium regularly.
• Adjust infusion rate: administer slowly to avoid rapid pH shifts.
• Caution in heart failure: limit volume to prevent overload.
• Avoid in severe hypocalcemia: may exacerbate calcium deficiency.
• Store at room temperature: keep in original container, protect from moisture and direct sunlight.

Sodium hydrogen carbonate can influence the activity of other medications.

Major Interactions (Avoid)

• Concurrent alkalinizing agents (e.g., other bicarbonate solutions) – risk of severe alkalosis.
• Calcium‑containing IV solutions – may precipitate calcium carbonate.
• Certain antibiotics (e.g., tetracyclines, fluoroquinolones) – reduced absorption/effectiveness.

Moderate Interactions (Monitor Closely)

• Potassium supplements – may cause rapid shifts in serum potassium.
• Loop diuretics – enhanced electrolyte loss requiring monitoring.
• ACE inhibitors or ARBs – increased risk of hyperkalemia when combined with other therapies.
• Digitalis glycosides – electrolyte changes can predispose to toxicity.