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Urine acidification/alkalinization
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Drug Name:


Generic Name and Formulations:
Potassium acid phosphate 500mg; equiv. to potassium 3.67mEq; scored tabs.

Beach Pharmaceuticals

Therapeutic Use:

Indications for K-PHOS ORIGINAL:

Urinary acidification.


2 tabs dissolved in 6–8oz water 4 times a day with meals and at bedtime.


Not recommended.


Renal or adrenal insufficiency. Severe hepatic disease. Infected phosphate stones. Hyperphosphatemia. Hyperkalemia (Original).


Electrolyte restrictions. Cardiac disease. Hypertension. Edema. Monitor serum electrolytes and for GI obstruction. Discontinue if laxation persists after dosage reduction. Hypoparathyroidism. Osteomalacia. Pancreatitis. Dehydration. Toxemia of pregnancy. Pregnancy (Cat.C). Nursing mothers.


Antagonized by antacids. Hyperkalemia with ACE inhibitors, triamterene, spironolactone, amiloride, potassium supplements. Toxicity with digitalis. Hypernatremia with methyldopa, guanethidine, other antihypertensives, corticotropins, mineralocorticoids.

See Also:


Pharmacological Class:

Urinary acidifier.

Adverse Reactions:

Small bowel lesions, laxation, headache, dizziness, hyperacidity, nausea, weakness, confusion, paresthesias, seizures, arrhythmias, shortness of breath, edema.

How Supplied:


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