The Web Health


Phosphorous Supplement

Generic name: potassium phosphate and sodium phosphate [poe-TASS-ee-um-FOSS-fate-and-SEW-dee-um-FOSS-fate]
The brand names are: K-Phos Neutral, K-Phos No. 2, PHOS NaK, Phospha 250 Neutral, and Phosphorous Supplement.
The class of drugs: minerals and electrolytes

What is a Phosphorous Supplement?

Phosphorus is a natural substance that is essential to every cell of the body. Most of the phosphorus within the body is in bones. The sodium salt and potassium form of phosphorus are known as phosphates. A phosphorous supplement is a mixture of medicine that helps make urine more acidic to assist in preventing kidney stones.

Side Effects of Phosphorous Supplement

See a doctor immediately. If you experience any of the following symptoms that indicate reactions to an allergen: hives; trouble breathing; and swelling of your lips, face, or tongue.

Phosphorous supplements may cause severe adverse effects. Consult your doctor immediately if you experience:

  • Persistent, severe, chronic, or persistent diarrhea;
  • Seizures (convulsion);
  • Breathlessness or
  • Symptoms of kidney problems: little or no urination; painful and difficult to urinate; swelling on your ankles or feet; and feeling fatigued or lacking breath.

Common adverse negative effects of phosphate supplements could include:

  • Nausea, vomiting, stomach pain, diarrhea;
  • Bones or joint joints;
  • Headache fatigue, dizziness, a shaky feeling
  • Muscle pain or weakness;
  • An increase in thirst and/or
  • Numbness or tingling sensation

This isn't a complete list of all the side effects. Others could happen. Contact your physician for advice regarding medical effects. You can report symptoms to the FDA at 1-800-FDA-1088.

Similar/related drugs

Ergocalciferol, ascorbic acid, Vitamin C, Drisdol, sodium phosphate, potassium phosphate, and Ester-C


It is best not to use phosphorous supplementation if you suffer from a severe kidney disease or if you have high levels of phosphorus in your body.

Prior to using this drug

It is not recommended to use a phosphorous supplement if you suffer from an allergic reaction to this or if you suffer from:

  • severe kidney disease or
  • the high level of phosphorus found in the blood (hyperphosphatemia).

To ensure that this medication is suitable for you, inform your doctor if:

  • A background of kidney stones in the past, but not so long ago;
  • Kidney disease;
  • Cirrhosis or another liver disease;
  • Excessive concentrations of potassium in the blood (hyperkalemia) and hypercalcemia, calcium (hypercalcemia), and sodium (hypernatremia);
  • The heart condition, high blood pressure;
  • Toxemia during pregnancy;
  • Addison's disorder (an adrenal gland disorder);
  • Breathing issues;
  • Pancreas disorder;
  • Thyroid disorder;
  • Swelling of your feet or hands;
  • If you are dehydrated; or
  • If you take diuretics or "water pills,"

FDA classification for pregnancy C It isn't clear how a phosphorus supplement will harm an unborn baby. Inform your doctor if you are expecting or planning to become pregnant while taking this medication. It is unclear if the medicine is absorbed into the milk of a nursing baby or whether it can harm breastfeeding babies. Consult your physician if you are breastfeeding a baby. Phosphorus supplements should never be administered to children younger than 4 years without the guidance of a doctor.

How to take Phosphorus Supplement?

Follow the directions on the prescription label. Don't take this medication in smaller or larger quantities or for longer than prescribed. Drink this medicine by drinking a bottle of drinking water. Phosphorus supplements are most effective if you consume them before meals and in the evening before bed.

When you are taking this medication, it is possible that you will require frequent urine or blood tests. The powder should be mixed with water before you use it. Mix one packet of powder with around 1/3 cup (2.5 ounces) of water. Stir until it is completely dissolved. Drink the mixture immediately after mixing. Don't save the mixture for the future.

Tablets may have to dissolve in water and be swallowed in their entirety. Be sure to follow the dosing guidelines included with your medication. If you've been diagnosed with a previous history of renal stones, it's possible that you'll get old stones following treatments with a phosphorus supplement. Keep at room temperature and free of heat, moisture, and light. Make sure the bottle is tightly shut when not being used.

What happens if I miss a dose?

Do the dose you missed as quickly as you can remember. Do not take your missed dose if it's nearing the time for your next dose. Don't take any extra medication to make up for the missed dose.

What happens if I overdose?

Get medical attention in an emergency or contact the Poison Help Line toll-free at 1-800-222-1222. Some symptoms of overdose may be a tingling sensation or numbness in muscles, stiffness or an aching sensation, loss of motion, disorientation, a heavy feeling in your legs, irregular heartbeats, or a feeling as if you're about to be snoring.

What should be avoided?

Consult your physician prior to using an antacid. Use only the one recommended by your physician. Certain anti-inflammatory medications may make it difficult for the body to take a phosphate supplement. Beware of taking supplements to your diet that have vitamin D or calcium unless your doctor has advised you to. Don't use salt substitutes or potassium supplements while taking a phosphate supplement unless your doctor has instructed you to.

Interaction with other drugs

Other medications can interfere when used with potassium phosphate and sodium phosphate, such as medications that are prescribed and available over the counter, vitamins, and herbal products. Be sure to inform your healthcare providers about the medicines you take now as well as any medication you begin or stop taking.