What Is Veltassa? Uses, Dosage, and What You Need to Know in 2026

If you or a loved one has just been prescribed Veltassa, you probably have a lot of questions. What is it? What does it treat? How do you take it? This guide covers everything you need to know about Veltassa (patiromer) in plain, clear language.

What Is Veltassa?

Veltassa is the brand name for patiromer sorbitex calcium — a prescription medication used to lower high potassium levels in the blood, a condition called hyperkalemia. It was approved by the FDA in October 2015, making it the first new potassium-binding medication approved in more than 50 years. Veltassa is manufactured by Vifor Pharma, Inc.

Veltassa is a powder that comes in single-use packets. You mix it with water or a soft food like applesauce or yogurt and drink it once a day. The powder never fully dissolves — the mixture will look cloudy, which is normal.

What Is Veltassa Used For?

Veltassa is FDA-approved to treat hyperkalemia (elevated blood potassium) in:

Adults

Pediatric patients ages 12 and older

Hyperkalemia most commonly occurs in patients with chronic kidney disease (CKD), heart failure, or type 2 diabetes — especially those taking medications that raise potassium levels, such as ACE inhibitors (lisinopril, enalapril), ARBs (losartan, valsartan), or potassium-sparing diuretics (spironolactone, eplerenone).

Important: Veltassa is NOT for emergency treatment of life-threatening hyperkalemia. It takes approximately 7 hours to begin working and is designed for chronic, ongoing management — not acute crises.

What Drug Class Is Veltassa In?

Veltassa belongs to a class of medications called potassium binders (also called cation exchange polymers). These drugs work in the digestive tract — not in the bloodstream — to bind potassium and remove it from the body before it can be absorbed.

Veltassa Dosage: How Much Do You Take?

Your doctor will determine your specific dose based on your serum potassium level and target range. Here are the standard dosing guidelines:

Adults: Starting dose is 8.4 grams once daily. Dose may be adjusted by 8.4g increments at 1-week or longer intervals. Maximum dose: 25.2g once daily.

Adolescents (12–17 years): Starting dose is 4 grams once daily. Adjusted in 4g increments at 1-week or longer intervals. Maximum: 25.2g once daily.

Veltassa comes in packets of 1g, 8.4g, 16.8g, and 25.2g. You may need to use more than one packet to get your prescribed dose.

How Do You Take Veltassa?

Measure about ⅓ cup (approximately 90 mL) of water (or other beverage like juice, or a soft food like applesauce, yogurt, or pudding).

Pour half into a glass. Empty the Veltassa packet(s) into the glass and stir.

Add the remaining liquid, stir thoroughly. The mixture will look cloudy — that's normal.

Drink the entire mixture immediately. If any powder remains, add more liquid, stir, and drink again.

Key rules: Never heat Veltassa (no microwave, no hot liquids). Don't take it in dry form. Prepare fresh before each dose.

Can You Take Veltassa with Food?

Yes. Veltassa can be taken with or without food. An open-label study showed no significant difference in effectiveness between food and non-food administration. Take it whenever is most convenient for you — but always at the same time each day to build a routine.

How Should Veltassa Be Stored?

Refrigerator: Store at 36–46°F (2–8°C). This is the preferred storage method.

Room temperature: Can be kept at room temperature (up to 77°F) for up to 3 months if refrigeration isn't practical (e.g., while traveling).

Never store above 104°F (40°C).

Keep in original packets until ready to use.

Key Facts About Veltassa at a Glance

Generic name: Patiromer sorbitex calcium

Drug class: Potassium binder

Controlled substance: No

FDA approved: 2015

Onset of action: ~7 hours after first dose

Dosing frequency: Once daily

Generic available: No (expected ~2028)

The Bottom Line

Veltassa is an effective, once-daily oral medication for managing chronic elevated potassium levels. It works entirely in the gut — not the bloodstream — and is safe for long-term use with regular monitoring. To understand how it actually works at a biological level, read our detailed guide on how Veltassa works.