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Renagel

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Prescription Prescription Required FormationFormulation: Tablet

Sevelamer

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Renagel contains the active ingredient sevelamer. It is a prescription phosphate-binding medication used to help control high phosphorus levels in people with chronic kidney disease (CKD) who are receiving dialysis.

Hyperphosphatemia

Renagel is used to treat hyperphosphatemia, which means there is too much phosphorus in the blood.

Phosphorus is a mineral found naturally in many foods. Healthy kidneys normally remove extra phosphorus from the bloodstream and pass it out of the body in urine. When kidney function becomes severely reduced, the kidneys may no longer be able to remove enough phosphorus.

As a result, phosphorus can build up in the blood. This is especially common in people with advanced chronic kidney disease who require hemodialysis or peritoneal dialysis.

Why High Phosphorus Levels Matter

When phosphorus levels remain too high, the body may pull calcium from the bones. Over time, this can weaken bones and contribute to bone pain or fractures.

High phosphorus levels can also disturb the balance between phosphorus, calcium, and parathyroid hormone. These changes may contribute to mineral and bone disorders associated with chronic kidney disease.

Excess phosphorus and calcium may also contribute to calcium deposits in blood vessels and other tissues. Keeping phosphorus levels within the recommended range is therefore an important part of long-term kidney disease management.

How Renagel Works

Renagel belongs to a class of medications called phosphate binders.

Sevelamer works inside the digestive tract. When Renagel is taken with food, it binds to phosphorus from the meal before that phosphorus can be absorbed into the bloodstream.

The bound phosphorus remains in the digestive tract and leaves the body in the stool.

Because sevelamer is not significantly absorbed into the bloodstream, its main effect takes place in the gastrointestinal tract.

Why Renagel Is Taken With Meals

Renagel should be taken with meals because this is when phosphorus from food enters the digestive tract.

Taking the medication with food allows it to bind to dietary phosphorus more effectively. Taking Renagel without a meal provides less opportunity for the medication to bind phosphorus.

Your healthcare provider may adjust the dose based on your blood phosphorus levels and the amount of phosphorus in your diet.

Calcium-Free Phosphate Binder

Renagel does not contain calcium or aluminum.

This can be useful for some patients who need phosphorus control without adding extra calcium to the body. Your healthcare provider will decide which phosphate binder is most appropriate based on your calcium levels, phosphorus levels, other medical conditions, and overall treatment plan.

Role of Renagel in Dialysis Treatment

Dialysis helps remove some excess phosphorus from the blood, but it may not remove enough phosphorus on its own.

Renagel can be used together with dialysis and a phosphorus-controlled diet to help keep phosphorus levels within the target range.

Treatment may include:

  • Taking Renagel with meals
  • Following dietary recommendations for phosphorus intake
  • Attending all scheduled dialysis treatments
  • Regular blood tests to monitor phosphorus and calcium levels

Monitoring During Treatment

Your healthcare provider may regularly check your blood phosphorus levels to determine how well Renagel is working.

Other laboratory tests may also be used to monitor calcium, parathyroid hormone, bicarbonate, and other measurements related to kidney and bone health.

Your Renagel dose may be adjusted over time depending on your blood test results, diet, dialysis treatment, and response to therapy.

Long-Term Phosphorus Control

Renagel helps control phosphorus while you are taking it, but it does not cure chronic kidney disease.

Phosphorus levels may rise again if treatment is stopped or if phosphorus intake increases. For this reason, take Renagel consistently with meals and continue treatment for as long as your healthcare provider recommends.

Renagel should be taken with meals because it needs to be present in the digestive tract when phosphorus from food is available.

The tablets should be taken exactly as prescribed by your healthcare provider. The dose is based mainly on your blood phosphorus level and may be adjusted over time according to laboratory results.

Starting Dose

For patients who are not already taking another phosphate binder, the usual starting dose is 800 mg to 1,600 mg with each meal, generally taken three times daily.

Typical starting doses are:

  • If serum phosphorus is more than 5.5 but less than 7.5 mg/dL: 800 mg three times daily with meals.
  • If serum phosphorus is 7.5 to less than 9 mg/dL: 1,600 mg three times daily with meals.
  • If serum phosphorus is 9 mg/dL or higher: 1,600 mg three times daily with meals.

Dose Adjustments

Your healthcare provider may adjust your Renagel dose based on your blood phosphorus level.

The dose can generally be increased or decreased by one tablet per meal at approximately 2-week intervals until phosphorus levels are within the desired range.

Regular blood tests are important because the amount of Renagel you need may change depending on your phosphorus levels, diet, dialysis treatment, and response to therapy.

Important Administration Note

Take Renagel with meals and follow any phosphorus-controlled diet recommended by your healthcare provider.

Do not change your dose or stop taking Renagel without speaking with your healthcare provider. Renagel helps control phosphorus while you are taking it, but it does not cure chronic kidney disease.

Common Side Effects of Renagel (Sevelamer):

  • Nausea
  • Vomiting
  • Diarrhea
  • Indigestion or upset stomach
  • Abdominal pain
  • Gas or bloating
  • Constipation
  • Headache
  • Cough
  • Sore throat
  • Arm or leg pain
  • Itching

Serious Side Effects of Renagel (Sevelamer):

  • Allergic reaction
  • Severe stomach pain
  • Severe constipation or fecal impaction
  • Difficulty swallowing or tablets becoming lodged in the esophagus
  • Intestinal blockage
  • Ileus, where normal intestinal movement slows or stops
  • Gastrointestinal ulcers or bleeding
  • Colitis or inflammation of the colon
  • Intestinal ulceration or tissue damage
  • Intestinal perforation
  • Fever, chills, body aches, flu symptoms
  • Feeling like you might pass out
  • Sudden numbness or weakness anywhere in your body
  • Wheezing, chest tightness, trouble breathing 

Renagel (Sevelamer) is available in the following forms and strength:

Renagel: Tablet

  • 800 mg

Sevelamer: Tablet

  • 400 mg
  • 800 mg

Bowel Obstruction

Do not use Renagel if you have a bowel obstruction.

Sevelamer can cause or worsen serious gastrointestinal problems. Seek medical attention if you develop severe abdominal pain, persistent vomiting, severe constipation, abdominal swelling, or an inability to pass stool or gas.

Swallowing and Gastrointestinal Problems

Use Renagel with caution if you have:

  • Difficulty swallowing
  • A swallowing disorder
  • Severe constipation
  • Problems with normal movement of the stomach or intestines
  • A history of major gastrointestinal surgery

Cases of tablets becoming stuck in the esophagus, bowel obstruction, gastrointestinal bleeding, ulcers, colitis, tissue damage, and intestinal perforation have been reported with sevelamer. Some cases required hospitalization or surgery.

Allergic Reactions

Do not take Renagel if you are allergic to sevelamer hydrochloride or any ingredient in the medication.

Seek urgent medical attention if you develop signs of a serious allergic reaction, such as swelling of the face, lips, tongue, or throat, severe rash, or difficulty breathing.

Vitamin and Nutrient Levels

Long-term treatment with sevelamer may affect the absorption or levels of certain nutrients.

Your healthcare provider may monitor vitamins D, E, and K, as well as folic acid, particularly during long-term treatment. Vitamin supplements may be recommended if needed.

Bicarbonate and Chloride Levels

Renagel contains sevelamer hydrochloride, which can affect the body’s acid-base balance.

Your healthcare provider may monitor bicarbonate and chloride levels during treatment, especially if you use Renagel for a long period.

Drug Interactions

Renagel can bind to some medications in the digestive tract and reduce how much of them your body absorbs.

Tell your healthcare provider about all prescription medications, over-the-counter products, vitamins, and supplements you take. Some medications may need to be taken at a different time from Renagel or monitored more closely.

This is particularly important for medications where even a small reduction in absorption could affect their safety or effectiveness.

Constipation

Renagel may cause constipation, and severe constipation can increase the risk of bowel complications.

Contact your healthcare provider if constipation becomes persistent, severe, or is accompanied by abdominal pain, vomiting, or swelling.

Regular Monitoring

Your healthcare provider will usually monitor your blood phosphorus level to determine how well Renagel is working.

Other laboratory tests may include calcium, bicarbonate, chloride, vitamin levels, and other measurements related to chronic kidney disease and dialysis. Your Renagel dose may be adjusted based on these results.

Can I take Renagel without food?

Renagel is intended to be taken with meals because it works by binding phosphorus from food. Follow your healthcare provider’s instructions about which meals require a dose and how much to take.

How long does Renagel take to work?

Renagel begins binding phosphorus in the digestive tract when it is taken with a meal. However, your healthcare provider will use blood tests to determine how well your phosphorus level is being controlled and whether your dose needs to be adjusted.

How long will I need to take Renagel?

The length of treatment depends on your kidney function, dialysis treatment, diet, and phosphorus levels. Some patients may need phosphate-binding treatment for a long period. Continue taking Renagel for as long as your healthcare provider recommends. Do not stop treatment or change the dose on your own.

What should I do if I miss a dose of Renagel? 

Because Renagel is taken with meals, a missed dose is generally not made up by taking extra tablets later. If you miss a dose with a meal, follow the instructions provided by your healthcare provider or pharmacist, and do not double your next dose.

Can Renagel interact with other medications?

Yes. Renagel may bind to certain medications in the digestive tract and reduce how much of them your body absorbs. Some medications may need to be taken at a different time from Renagel. For medications where reduced absorption could have an important effect, your healthcare provider may recommend separating the doses or monitoring the medication more closely. Sevelamer is known to reduce the absorption of some drugs, including ciprofloxacin and mycophenolate mofetil.

Can Renagel cause constipation?

Yes. Constipation is a known side effect of Renagel. Severe or worsening constipation should be reported to your healthcare provider because, in rare cases, sevelamer has been associated with serious bowel complications such as fecal impaction, bowel obstruction, or perforation.

Does Renagel contain calcium?

No. Renagel is a calcium-free phosphate binder. Its active ingredient is sevelamer hydrochloride, so it can lower phosphorus without adding extra calcium to the body.

Does Renagel cure chronic kidney disease?

No. Renagel does not cure chronic kidney disease or replace dialysis. It is used as part of a treatment plan to help control phosphorus levels. Treatment may also include dialysis, dietary phosphorus restriction, and regular blood tests.

Can Renagel affect vitamin levels?

Yes. Long-term treatment with sevelamer may reduce the absorption of certain vitamins and nutrients, including vitamins D, E, and K and folic acid. Your healthcare provider may monitor these levels and recommend supplements if needed.

How should Renagel be stored?

Store Renagel at controlled room temperature, generally around 25°C (77°F), with permitted short-term temperatures between 15°C and 30°C (59°F to 86°F). Keep the tablets protected from moisture and do not use them after the expiration date on the bottle.

REVIEWS

Additional Information Book
Generic name:

Sevelamer, Sevelamer Hydrochloride

Formulation:

Tablet

Strength(s):

400mg, 800mg

Quantities Available:

90, 100, 180

Why customers love Online Pharmacies Canada

Our online Canadian Pharmacy is known for high standards of quality, safety, and efficiency when it comes to medications.

Our pharmacy offers lower prices on prescription drugs compared to traditional pharmacies.

How to Order

How much Renagel can I order at once from a Canadian pharmacy?

When ordering Renagel (sevelamer) from a Canadian pharmacy, you can typically purchase up to a 90-day supply at one time, which is common for prescription medications to ensure adequate management of chronic conditions without frequent refills.

Here’s what you need to know:

Dosage and Quantity: Renagel is commonly prescribed at a dosage of 800 mg, taken three times daily with meals. For a 90-day supply, this means you would order 270 tablets (90 days x 3 tablets per day).

Do you sell sevelamer?

Yes, we sell sevelamer on our website. You can enjoy low prices when you order through us. To purchase sevelamer, you will need a valid prescription from your healthcare provider. We require this prescription to dispense the medication safely and appropriately. You have the option to submit your prescription by mailing it to us, faxing it, or uploading it through your online account.

Do you offer shipping of Renagel (sevelamer) to the United States?

Yes, we ship Renagel (sevelamer) to both the United States and Puerto Rico.

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Online Pharmacies Canada has provided information from third parties intended to increase awareness and does not contain all the information about Renagel (Sevelamer). Talk to your doctor or other qualified medical practitioners for medical attention or advice, or if you have any concerns about Renagel (Sevelamer).