K PHOS NEUTRAL

Each tablet contains 852 mg dibasic sodium phosphate anhydrous, 155 mg monobasic potassium phosphate, and the equivalent of 130 mg monobasic sodium phosphate monohydrate. Each tablet yields approximately 250 mg of phosphorus, 298 mg of sodium (13.0 mEq) and 45 mg of potassium (1.1 mEq). The components of K-PHOS® NEUTRAL have the following chemical names and molecular formulae: Dibasic Sodium Phosphate, Anhydrous Molecular Formula: Na2HPO4, Molecular Weight: 141.96. Monobasic Potassium Phosphate Molecular Formula: KH2PO4, Molecular Weight: 136.09. Monobasic Sodium Phosphate, Monohydrate Molecular Formula:NaH2PO4.H2O, Molecular Weight: 137.98. Inactive Ingredients: Lactose monohydrate, povidone, white coating (hydroxypropyl methylcellulose, titanium dioxide, maltodextrin, triacetin, glycerol triacetate, polyethylene glycol, sodium citrate, and stearic acid), sodium starch glycolate, and magnesium stearate.

K-PHOS® NEUTRAL increases urinary phosphate and pyrophosphate. As a phosphorus supplement, each tablet supplies 25% of the U.S. Recommended Daily Allowance (U.S.RDA) of phosphorus for adul t s and children over 4 years of age.

K-PHOS® NEUTRAL tablets should be taken with a full glass of water, with meals and at bedtime. Adults: One or two tablets four times daily; Pediatric Patients over 4 years of age: One tablet four times daily. For Pediatric Patients under 4 years of age, use only as directed by a physician.

This product is contraindicated in patients with infected phosphate stones, in patients with severely impaired renal function (less than 30% of normal) and in the presence of hyperphosphatemia.

Gastrointestinal upset (diarrhea, nausea, stomach pain and vomiting) may occur with phosphate therapy. Also, bone and joint pain (possible phosphate-induced osteomalacia) could occur. The following adverse effects may be observed (primarily from sodium or potassium): headaches; dizziness; mental confusion; seizures; weakness or heaviness of legs; unusual tiredness or weakness; muscle cramps; numbness, tingling, pain, or weakness of hands or feet; numbness or tingling around lips; fast or irregular heartbeat; shortness of breath or troubled breathing; swelling of feet or lower legs; unusual weight gain; low urine output; unusual thirst.

The use of antacids containing magnesium, aluminum, or calcium in conjunction with phosphate preparations may bind the phosphate and prevent its absorption. Concurrent use of antihypertensives, especially diazoxide, guanethidine, hydralazine, methyldopa, or rauwolfia alkaloid; or corticosteroids, especially mineralocorticoids or corticotropin, with sodium phosphate may result in hypernatremia. Calciumcontaining preparations and/or Vitamin D may antagonize the effects of phosphates in the treatment of hypercalcemia. Potassium-containing medications or potassium-sparingdiuretics may cause hyperkalemia. Patients should have serum potassium level determinations at periodic intervals.

STORAGE Keep tightly closed. Store at controlled room temperature, 20°-25°C (68°-77°F). [See USP] Dispense in tight, light-resistant containers with child-resistant closures.