Sodium polystyrene sulfonate belongs to the class of medications called cation-exchange resins. It is used to treat high levels of potassium in the blood (hyperkalemia).

It lowers the level of potassium in the blood by binding to potassium in the intestine.

Solystat (Polystyrene-sulfonate-sodium) may be available under multiple brand names and/or in several different forms. Any specific brand name of Solystat (Polystyrene-sulfonate-sodium) may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of Solystat (Polystyrene-sulfonate-sodium) may not be used for all of the conditions discussed here.

Your doctor may have suggested Solystat (Polystyrene-sulfonate-sodium) for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking Solystat (Polystyrene-sulfonate-sodium), speak to your doctor. Do not stop taking Solystat (Polystyrene-sulfonate-sodium) without consulting your doctor.

Do not give Solystat (Polystyrene-sulfonate-sodium) to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take Solystat (Polystyrene-sulfonate-sodium) if their doctor has not prescribed it.

Oral: The average adult dose is 15 grams taken 1 to 4 times daily. Each dose should be mixed in a small quantity of water or syrup. Do not mix it with orange or fruit juice that contains potassium. Lower doses are used for children and infants.

Rectal: The recommended adult dose is 120 mL to 200 mL used 1 or 2 times daily (at intervals of 6 hours).

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important to use Solystat (Polystyrene-sulfonate-sodium) exactly as prescribed by your doctor.

If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.

The side effects listed below are not experienced by everyone who takes Solystat (Polystyrene-sulfonate-sodium). If you are concerned about side effects, discuss the risks and benefits of Solystat (Polystyrene-sulfonate-sodium) with your doctor.

The following side effects have been reported by at least 1% of people taking Solystat (Polystyrene-sulfonate-sodium). Many of these side effects can be managed, and some may go away on their own over time.

Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.

• Constipation
• Diarrhea
• loss of appetite
• nausea
• vomiting

Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

• abdominal pain or swelling
• bleeding from the rectum
• blood-streaked stool or bloody diarrhea 
• symptoms of low calcium levels (e.g., abdominal cramps, irritability, muscle spasms)
• symptoms of low magnesium levels (e.g., muscle weakness, irregular heartbeat, nausea, vomiting)
• symptoms of low potassium levels (e.g., muscle weakness, irregular heartbeat, nausea, vomiting)
• symptoms of sodium retention (e.g., bloating, excessive thirst)

Stop taking the medication and seek immediate medical attention if any of the following occur:

• signs of an allergic reaction (such as difficulty breathing, Hives, swelling of the face or throat)  
• signs of bleeding in the stomach (e.g., vomit that looks like coffee grounds; black, bloody or tarry stools)
• symptoms of a blocked intestine (e.g., abdominal pain, abdominal swelling, vomiting)
• symptoms of fecal impaction (e.g., leaking liquid stool, stomach pain, feeling the need to push, nausea, vomiting, loss of appetite)
• symptoms of a tear of the intestine (e.g., abdominal pain, nausea, vomiting, Fever)

Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking Solystat (Polystyrene-sulfonate-sodium).

Oral Suspension
Each 60 mL of brown, cherry-flavoured suspension contains sodium polystyrene sulfonate USP 15 g, sorbitol 14.1 g, and methylparaben and propylparaben as preservatives. The sodium content is 65 mmol (1.5 g)/60 mL.

Retention Enema
Each 120 mL of brown suspension contains sodium polystyrene sulfonate USP 30 g, sorbitol 28.2 g, and contains methylparaben and propylparaben as preservatives. The sodium content is 65 mmol (1.5 g)/60 mL.

Powder
Each gram of light brown, finely ground powder contains 1 gram of sodium polystyrene sulfonate. The sodium content is approximately 4.1 mmol (94.3 mg) per gram of the drug.

Do not use Solystat (Polystyrene-sulfonate-sodium) if you:

• are allergic to sodium polystyrene sulfonate or any ingredients of the medication
• have a serum potassium level less than 5 mmol/L
• have obstructive bowel disease

Sodium polystyrene sulfonate should not be given to newborns by mouth.

There may be an interaction between sodium polystyrene sulfonate and any of the following:

• aluminum hydroxide
• certain antacids (e.g., magnesium hydroxide, calcium carbonate)
• Digoxin
• laxatives
• lithium
• magnesium citrate
• sorbitol
• Thyroid replacements (e.g., desiccated thyroid, Levothyroxine)

If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:

• stop taking one of the medications,
• change one of the medications to another,
• change how you are taking one or both of the medications, or
• leave everything as is.

An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.

Medications other than those listed above may interact with Solystat (Polystyrene-sulfonate-sodium). Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.

Before you begin using a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Solystat (Polystyrene-sulfonate-sodium).

Increase in sodium levels: Sodium polystyrene sulfonate can cause an increase in sodium levels. If you have Congestive Heart Failure, high blood pressure, kidney problems, or swelling of the ankles, feet, lower legs, or hands, discuss with your doctor how Solystat (Polystyrene-sulfonate-sodium) may affect your medical condition and whether special monitoring is required.

Low potassium levels: Sodium polystyrene sulfonate can cause low potassium levels. Tell your doctor if you experience symptoms of low potassium, such as confusion, irregular heartbeat, and muscle weakness or cramping.

Pregnancy: The safety and effectiveness of using Solystat (Polystyrene-sulfonate-sodium) during pregnancy have not been established.

Breast-feeding: The safety and effectiveness of using Solystat (Polystyrene-sulfonate-sodium) while breast-feeding have not been established.

Children and infants: Newborns should not be given sodium polystyrene sulfonate by mouth.