Ceralyte-90 (sodium/chloride salt/potassium/citrate)

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There are no contraindication interactions for this drug.

Severe Interaction: Action is required to reduce the risk of severe adverse interaction.

Potassium Supplements/Eplerenone

SEVERITY LEVEL: 2-Severe Interaction: Action is required to reduce the risk of severe adverse interaction.

MECHANISM OF ACTION: Eplerenone increases serum potassium levels.(1)

CLINICAL EFFECTS: Concurrent use of eplerenone with a potassium supplement may result in hyperkalemia.(1)

PREDISPOSING FACTORS: Renal impairment.

PATIENT MANAGEMENT: The manufacturer of eplerenone states that the use of eplerenone for the treatment of hypertension in patients receiving potassium supplements is contraindicated.(1)

DISCUSSION: The main risk of eplerenone therapy is hyperkalemia. The risk of hyperkalemia can be reduced by avoiding potassium supplements during eplerenone therapy.(1)

Potassium Supplements/Potassium Sparing Diuretics

SEVERITY LEVEL: 2-Severe Interaction: Action is required to reduce the risk of severe adverse interaction.

MECHANISM OF ACTION: Decreased renal excretion of potassium, resulting from administration of a potassium sparing diuretic.

CLINICAL EFFECTS: May observe hyperkalemia which may be severe or even fatal.

PREDISPOSING FACTORS: Renal function impairment.

PATIENT MANAGEMENT: If both drugs are administered, monitor potassium levels. Adjust the dose of the drugs accordingly. This combination should probably be avoided if possible.

DISCUSSION: The interaction is well documented. Patients with decreased renal function are especially at risk of developing hyperkalemia from this drug combination. A commonly held belief is that a potassium sparing diuretic formulated in combination with a thiazide diuretic, such as Dyazide, will not exhibit this interaction. Although the likelihood of hyperkalemia occurring may be reduced somewhat, a danger still exists.

Potassium Supplements/Trimethoprim

SEVERITY LEVEL: 2-Severe Interaction: Action is required to reduce the risk of severe adverse interaction.

MECHANISM OF ACTION: Trimethoprim may increase serum potassium levels by reduction in potassium elimination.(1-3) The combination of trimethoprim and potassium supplements can have an additive effect on serum potassium resulting in potentially dangerous levels.

CLINICAL EFFECTS: Concurrent use of trimethoprim and potassium supplements may result in hyperkalemia, which may be severe.

PREDISPOSING FACTORS: Patients who are elderly, have any degree of renal insufficiency or heart failure have an increased risk for hyperkalemia.(1-9) Concomitant use with other drugs associated with hyperkalemia risk (e.g. ACE Inhibitors, angiotensin II receptor antagonists, aldosterone antagonists, NSAIDs) and high doses of trimethoprim further increase the risk for hyperkalemia.(1-8) Interaction risk and severity is greater in patients with multiple risk factors.

PATIENT MANAGEMENT: Assure adequate monitoring for hyperkalemia.(1-9) Patients receiving trimethoprim and a potassium supplement concurrently should have their serum potassium monitored at baseline and during treatment. Potassium supplementation may need to be held during antibiotic therapy, especially when other predisposing factors for hyperkalemia are present. Peak potassium increase due to trimethoprim is delayed and generally occurs after 4 or more days of therapy.(3,5,6) When possible, alternative antibiotic therapy should be considered in patients with one or more risk factors for hyperkalemia, e.g. renal impairment, heart failure, age > 65 years, and/or receiving additional meds associated with hyperkalemia risk (e.g. ACE inhibitors, angiotensin II receptor blockers, aldosterone antagonists, NSAIDs).(6)

DISCUSSION: A nested case-control study evaluated the risk for hyperkalemia in 19,194 patients with newly diagnosed heart failure. Over a mean follow-up of 3.9 years 2,176 cases of hyperkalemia (96.7% with a potassium value of => 5.5 mmol/L) were identified. Study authors found that trimethoprim independently increased the risk for hyperkalemia (OR 2.82; 95% CI 1.88-4.23).(4) A retrospective cohort study evaluated the risk for hospitalization due to hyperkalemia in 393,039 elderly women (age >65 years) treated for a urinary tract infection (UTI) with trimethoprim-sulfamethoxazole (TMP-SMX) or another antibiotic (amoxicillin, ciprofloxacin, norfloxacin, nitrofurantoin). Baseline renal function was similar in all five antibiotic groups. When compared with amoxicillin, TMP-SMX use was associated with a 3.3-fold increased risk for hospitalization due to hyperkalemia. Ciprofloxacin, norfloxacin, and nitrofurantoin were not associated with a risk for hyperkalemia.(9) A prospective study of hospitalized patients evaluated the risk for hyperkalemia in patients who received standard dose TMP-SMX (<= 320 mg trimethoprim, <= 1600 mg sulfamethoxazole daily) versus a control group who received a different antibiotic for at least 5 days. The two groups were similar in age, renal function and use of potassium altering medications. Serum potassium concentration increased in TMP-SMX patients by 1.21 mmol/L (CI 1.09 - 1.32 mmol/L), a change which was statistically significant in patients with a pretreatment serum creatinine = or > 1.2. In control patients, serum potassium decreased during antibiotic therapy (change not quantitated by authors).(5)

Moderate Interaction: Assess the risk to the patient and take action as needed.

Agents That Increase Potassium/Baxdrostat

SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.

MECHANISM OF ACTION: The combination of baxdrostat and agents that increase potassium such as aldosterone receptor antagonists, potassium-sparing diuretics, and potassium supplements can have an additive effect on serum potassium levels.

CLINICAL EFFECTS: Concurrent use of baxdrostat and agents that increase potassium may result in hyperkalemia, which may be severe.

PREDISPOSING FACTORS: More frequent monitoring is recommended for patients at increased risk of hyperkalemia (e.g., patients greater than or equal to 65 years or age, those with diabetes mellitus or chronic kidney disease).(1)

PATIENT MANAGEMENT: The manufacturer of baxdrostat states concurrent use with medications that may increase potassium warrants more frequent monitoring of serum potassium.(1) Assess serum potassium prior to initiation of baxdrostat and monitor periodically during treatment. Correct serum potassium abnormalities prior to initiation of baxdrostat.(1) If hyperkalemia occurs, treat hyperkalemia and consider interrupting or discontinuing baxdrostat. Consider more frequent monitoring of serum potassium in patients who restart baxdrostat after experiencing hyperkalemia. Permanently discontinue baxdrostat if clinically significant hyperkalemia recurs.(1)

DISCUSSION: Baxdrostat may increase potassium. Concurrent use with aldosterone receptor antagonists, potassium-sparing diuretics, and potassium supplements may have additive effects on serum potassium levels, resulting in hyperkalemia. The risk of hyperkalemia can be reduced by monitoring serum potassium more frequently when baxdrostat is administered concomitantly with these agents.

Potassium Supplements/Aliskiren

SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.

MECHANISM OF ACTION: Aliskiren may decrease the renal excretion of potassium.

CLINICAL EFFECTS: Concurrent use of potassium supplements with aliskiren may result in hyperkalemia.

PREDISPOSING FACTORS: Impaired renal function; diabetes mellitus.

PATIENT MANAGEMENT: Monitor serum potassium and adjust the dosage accordingly in patients receiving concurrent therapy with potassium supplements and aliskiren.

DISCUSSION: Several studies have indicated that serum potassium levels increase when ACE inhibitors and ARB therapy is initiated and decrease when the drug is lowered. Increased potassium levels have also been seen with aliskiren. Based on this data, serum potassium levels should be monitored in patients receiving potassium supplements with aliskiren.

Potassium Supplements/Angiotensin Ii Receptor Blocker (Arb)

SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.

MECHANISM OF ACTION: Angiotensin II receptor blockers (ARBs) may decrease the renal excretion of potassium.

CLINICAL EFFECTS: Concurrent use of potassium supplements with ARBs may result in hyperkalemia.

PREDISPOSING FACTORS: Impaired renal function; diabetes mellitus.

PATIENT MANAGEMENT: Monitor serum potassium and adjust the dosage accordingly in patients receiving concurrent therapy with potassium supplements and ARBs.

DISCUSSION: Several studies have indicated that serum potassium levels increase when ARB therapy is initiated and decrease when the drug is lowered. Based on this data, serum potassium levels should be monitored in patients receiving potassium supplements with ARBs.

Potassium Supplements/Drospirenone

SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.

MECHANISM OF ACTION: Drospirenone has antimineralocorticoid activity and may cause hyperkalemia. Potassium supplements also increase potassium levels.(1)

CLINICAL EFFECTS: Concurrent use of drospirenone and potassium supplements may result in hyperkalemia.(1)

PREDISPOSING FACTORS: Renal insufficiency, hepatic dysfunction, adrenal insufficiency, and use of potassium-sparing diuretics, ACE inhibitors, angiotensin II receptor antagonists, heparin, and NSAIDs may increase potassium levels.(1)

PATIENT MANAGEMENT: Patients receiving drospirenone with a potassium supplement should have their serum potassium level checked during the first treatment cycle.(1)

DISCUSSION: Drospirenone has antimineralocorticoid activity comparable to 25 mg of spironolactone and may result in hyperkalemia. Concurrent use of potassium-supplements also increase potassium levels.(1)

Potassium Supplements/Selected Ace Inhibitors

SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed. SEVERITY LEVEL: 3-Moderate Interaction: Assess the risk to the patient and take action as needed.

MECHANISM OF ACTION: ACE inhibitors may decrease the renal excretion of potassium. MECHANISM OF ACTION: ACE inhibitors may decrease the renal excretion of potassium.

CLINICAL EFFECTS: Concurrent use of potassium supplements with ACE inhibitors may result in hyperkalemia. CLINICAL EFFECTS: Concurrent use of potassium supplements with ACE inhibitors may result in hyperkalemia.

PREDISPOSING FACTORS: Impaired renal function; diabetes mellitus. PREDISPOSING FACTORS: Impaired renal function; diabetes mellitus.

PATIENT MANAGEMENT: Monitor serum potassium and adjust the dosage accordingly in patients receiving concurrent therapy with potassium supplements and ACE inhibitors. PATIENT MANAGEMENT: Monitor serum potassium and adjust the dosage accordingly in patients receiving concurrent therapy with potassium supplements and ACE inhibitors.

DISCUSSION: Several studies have indicated that serum potassium levels increase when ACE inhibitors is initiated and decrease when the drug is lowered. Based on this data, serum potassium levels should be monitored in patients receiving potassium supplements with ACE inhibitors. Selected ACE inhibitors linked to this monograph include: alacepril, cilazapril, delapril, imidapril, perindopril, spirapril, temocapril, and zofenopril. DISCUSSION: Several studies have indicated that serum potassium levels increase when ACE inhibitors is initiated and decrease when the drug is lowered. Based on this data, serum potassium levels should be monitored in patients receiving potassium supplements with ACE inhibitors. Selected ACE inhibitors linked to this monograph include: benazepril, captopril, enalapril, fosinopril, lisinopril, moexipril, quinapril, ramipril, and trandolapril.

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• Familial hyperkalemic periodic paralysis
• Hyperkalemia

• Chronic kidney disease stage 4 (severe) GFR 15-29 ml/min
• Chronic kidney disease stage 5 (failure) GFr<15 ml/min
• Complete atrioventricular block
• Dehydration
• Gastroparesis
• Hyporeninemic hypoaldosteronism
• Myotonia congenita - autosomal dominant form
• Severe heart block

• Kidney disease with likely reduction in glomerular filtration rate (GFr)

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Less Frequent

• Hyperkalemia

Rare or Very Rare

• Bloody stools
• Duodenal ulcer
• Gastrointestinal hemorrhage
• Gastrointestinal irritation
• Gastrointestinal obstruction
• Gastrointestinal perforation
• Gastrointestinal ulcer
• Hypernatremia
• Skin rash
• Sore throat

More Frequent

• Acute abdominal pain
• Diarrhea
• Flatulence
• Nausea
• Vomiting
• Vomiting

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