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Dosage must be individualized based on the serum potassium levels of the patient.

• For Prevention of Hypokalemia: Typically 20 mEq (milliequivalents) per day.
• For Treatment of Hypokalemia: 40 to 100 mEq per day, usually administered in divided doses to minimize gastrointestinal side effects.

Potassium use in children must be strictly monitored by a pediatrician.

• General Guideline: 1 to 2 mEq/kg/day in divided doses. Safety and effectiveness in pediatric populations depend heavily on the underlying cause of the electrolyte imbalance.

Renal Impairment

Patients with renal impairment (kidney disease) require extreme caution. Because the kidneys are responsible for potassium excretion, reduced function can lead to life-threatening hyperkalemia (high potassium). Frequent laboratory monitoring is mandatory.

Hepatic Impairment

No specific dosage adjustments are generally required for liver disease, though the patient's overall metabolic state should be monitored.

Elderly Patients

Older adults often have reduced renal function; therefore, healthcare providers typically start at the lower end of the dosing range and monitor kidney function closely.

Potassium should be taken with a full glass of water and with food to reduce the risk of stomach upset or irritation of the esophagus. Extended-release tablets must be swallowed whole; do not crush, chew, or break them unless specifically instructed by your pharmacist, as this can cause a rapid release of the drug. Store at room temperature away from moisture and heat.

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and resume your regular schedule. Do not double the dose to catch up.

Signs of potassium overdose (hyperkalemia) include muscle weakness, paralysis, irregular heartbeat, chest pain, and cardiac arrest. If an overdose is suspected, contact emergency services or a poison control center immediately.

> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose without medical guidance.

• Gastrointestinal Upset: Nausea, vomiting, gas (flatulence), and abdominal discomfort are common as the salt can irritate the stomach lining.
• Diarrhea: Loose stools may occur as the body adjusts to the supplement.

• Minor Skin Rash: Some patients may report mild itching or redness.
• Stomach Cramping: More pronounced than general discomfort, often related to taking the dose on an empty stomach.

• Gastrointestinal Ulceration: In rare cases, solid dosage forms can cause small bowel lesions or bleeding.
• Paresthesia: A 'pins and needles' sensation in the hands or feet.

> Warning: Stop taking Potassium and call your doctor immediately if you experience any of these.

• Hyperkalemia: Symptoms include a slow or irregular heartbeat, severe muscle weakness, or a heavy feeling in the legs.
• Gastrointestinal Bleeding: Characterized by black, tarry stools or vomiting blood (which may look like coffee grounds).
• Severe Allergic Reaction: Symptoms include hives, difficulty breathing, or swelling of the face, lips, and throat.
• Confusion or Anxiety: Sudden changes in mental status can indicate a severe electrolyte shift.

Prolonged use of potassium supplements without medical supervision can lead to chronic hyperkalemia, which may cause permanent heart rhythm issues or kidney damage. Regular blood tests (BMP or CMP) are necessary for long-term therapy.

No FDA black box warnings currently exist for Potassium Chloride; however, the risk of hyperkalemia in patients with renal impairment is a primary clinical concern that carries similar weight in prescribing decisions.

Report any unusual symptoms to your healthcare provider.

Potassium supplements should only be used under the guidance of a healthcare professional. The most significant risk associated with potassium therapy is hyperkalemia, which can be fatal if not identified and treated promptly.

No FDA black box warnings for Potassium.

• Hyperkalemia Risk: Patients with conditions that predispose them to high potassium (such as Addison's disease or severe tissue injury/burns) must avoid these supplements.
• Gastrointestinal Lesions: Solid dosage forms of potassium chloride have been associated with upper and lower gastrointestinal mucosal ulceration and bleeding. This risk is higher in patients with delayed gastric emptying.
• Cardiac Disease: Patients with heart disease must be monitored closely, as both high and low potassium levels can trigger dangerous arrhythmias.
• Renal Function: Potassium is contraindicated in patients with severe renal impairment or oliguria (low urine output).

Periodic serum potassium determinations are essential. Your doctor may also order regular BUN (Blood Urea Nitrogen) and creatinine tests to monitor kidney function, as well as occasional ECGs (electrocardiograms) to check heart rhythm.

Potassium generally does not affect the ability to drive or operate machinery. However, if you experience dizziness or confusion due to electrolyte shifts, avoid these activities.

Alcohol can irritate the gastrointestinal tract and may increase the risk of stomach upset when taking potassium. Consult your doctor regarding alcohol consumption.

Do not stop taking potassium suddenly if you are taking it for a chronic condition, as this could lead to a rapid drop in potassium levels. Follow a tapering schedule if recommended by your provider.

> Important: Discuss all your medical conditions with your healthcare provider before starting Potassium.

• Potassium-Sparing Diuretics: Medications like Spironolactone, Amiloride, or Triamterene should not be used with potassium supplements as they significantly increase the risk of life-threatening hyperkalemia.

• ACE Inhibitors: Drugs such as Lisinopril or Enalapril reduce aldosterone production, which can lead to potassium retention.
• Angiotensin II Receptor Blockers (ARBs): Drugs like Losartan or Valsartan have similar effects to ACE inhibitors regarding potassium levels.
• Renin Inhibitors: Aliskiren can increase serum potassium levels.

• NSAIDs: Non-steroidal anti-inflammatory drugs (e.g., Ibuprofen, Naproxen) can reduce renal blood flow and impair potassium excretion.
• Digoxin: While potassium is often used to prevent digoxin toxicity, high levels of potassium can also interfere with digoxin's efficacy. Careful balancing is required.

• Salt Substitutes: Many salt substitutes contain potassium chloride. Using these while taking a potassium supplement can lead to accidental overdose.
• High-Potassium Foods: Large amounts of bananas, orange juice, or leafy greens should be consumed consistently rather than in sudden large quantities to avoid fluctuating levels.

• Dandelion and Alfalfa: These herbs are high in potassium and may contribute to elevated levels.
• Licorice Root: Can cause potassium loss, potentially counteracting the supplement.

Potassium supplements do not typically interfere with standard laboratory tests, other than the intended effect of raising serum potassium measurements.

> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking.

Potassium must NEVER be used in the following conditions:

• Hyperkalemia: Any condition where blood potassium is already elevated.
• Severe Renal Impairment: When the kidneys cannot effectively clear potassium from the blood.
• Addison’s Disease: Untreated adrenal insufficiency leads to high potassium levels.
• Acute Dehydration: Can lead to concentrated serum levels and toxicity.
• Structural GI Abnormalities: For solid tablets, any condition that delays passage through the GI tract (e.g., esophageal compression) is a contraindication due to the risk of local irritation and ulceration.

• Cardiac Disease: Requires extremely careful titration.
• Metabolic Acidosis: Must be treated alongside potassium replacement.

There is no known cross-sensitivity between potassium chloride and other unrelated drug classes, though patients sensitive to certain tablet binders or dyes should check the inactive ingredients.

> Important: Your healthcare provider will evaluate your complete medical history before prescribing Potassium.

Potassium is classified as FDA Pregnancy Category C. While potassium is a normal constituent of human milk and blood, it should only be given to a pregnant woman if clearly needed. According to the American College of Obstetricians and Gynecologists (ACOG), maintaining electrolyte balance is crucial, but supplementation must be medically supervised.

Potassium is excreted in human milk. The potassium content of human milk is about 13 mEq/L. Since oral potassium is a natural part of the diet, supplementation at therapeutic doses is generally considered compatible with breastfeeding, provided maternal serum levels are monitored.

Safety and effectiveness in children have been established for the treatment of hypokalemia, but dosing is strictly weight-based. Children are more sensitive to electrolyte shifts and require frequent monitoring.

Clinical studies have shown that elderly patients are at a higher risk of hyperkalemia due to the natural decline in glomerular filtration rate (GFR) associated with aging. Healthcare providers often monitor renal function more frequently in this population.

In patients with a GFR below 30 mL/min, potassium supplementation is generally avoided unless under extreme circumstances with continuous monitoring, as the risk of cardiac arrest from hyperkalemia is significantly elevated.

No specific dose adjustment is needed for patients with liver cirrhosis, though they may have concurrent renal issues (Hepatorenal syndrome) that would complicate potassium use.

> Important: Special populations require individualized medical assessment.

Potassium is the major intracellular cation. It is essential for the maintenance of intracellular tonicity, the transmission of nerve impulses, the contraction of cardiac, skeletal, and smooth muscle, and the maintenance of normal renal function. It acts as a cofactor in many enzymatic reactions, including those involved in protein synthesis and carbohydrate metabolism.

Following oral administration, the onset of action for potassium replacement is relatively rapid, though the full effect on serum levels may take several days of consistent dosing. The duration of effect is dependent on renal excretion rates. There is no evidence of tolerance development.

| Parameter | Value |

|---|---|

| Bioavailability | >90% (Oral) |

| Protein Binding | Negligible |

| Half-life | Variable (Dependent on renal function) |

| Tmax | 1-2 hours (Immediate release); 4-8 hours (Extended release) |

| Metabolism | None (Elemental) |

| Excretion | Renal 90%, Fecal 10% |

• Molecular Formula: KCl
• Molecular Weight: 74.55 g/mol
• Solubility: Highly soluble in water; slightly soluble in alcohol.
• Description: Potassium chloride occurs as a white, crystalline powder or colorless crystals.

Potassium is classified as an Electrolyte Supplement. Related medications include Potassium Citrate, Potassium Gluconate, and Magnesium-Potassium combinations.