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What is Zaroxolyn?

Zaroxolyn (Metolazone) belongs to the class of medications called diuretics. It is used to treat blood pressure and to remove excessive water (edema) that occurs in such conditions as Congestive Heart Failure and some forms of Kidney Disease.

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  • The cost of Zaroxolyn is $0.26 with us here at PocketPills. The cost of Zaroxolyn can be lower if your insurance covers it. To calculate the total price of purchasing Zaroxolyn, you should also consider dispensing and delivery fees.

How much is the dispensing fee for Zaroxolyn

  • The dispensing cost to order Zaroxolyn with us is only $7. Pocketpills aims to offer you the most affordable Zaroxolyn price in Canada.
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Zaroxolyn (Metolazone) belongs to the class of medications called diuretics. It is used to treat blood pressure and to remove excessive water (edema) that occurs in such conditions as Congestive Heart Failure and some forms of Kidney Disease.

It usually takes 3 to 4 days for Zaroxolyn (Metolazone) to start reducing edema, and 3 to 6 weeks to start reducing blood pressure.

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

Your doctor may have suggested Zaroxolyn (Metolazone) 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 Zaroxolyn (Metolazone), speak to your doctor. Do not stop taking Zaroxolyn (Metolazone) without consulting your doctor.

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



The recommended dose of Zaroxolyn (Metolazone) ranges from 2.5 mg to 20 mg daily depending on the condition being treated and the circumstances of the person taking the medication. For treatment of high blood pressure, the usual dose is 2.5 mg to 5 mg once daily. For treatment of edema, the usual dose ranges from 5 to 20 mg once daily.

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 take this medication 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.

Store Zaroxolyn (Metolazone) at room temperature, protect it from light and moisture, and keep it out of the reach of children.

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.


Side Effects

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 Zaroxolyn (Metolazone). If you are concerned about side effects, discuss the risks and benefits of Zaroxolyn (Metolazone) with your doctor.

The following side effects have been reported by at least 1% of people taking Zaroxolyn (Metolazone). 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.

  • decreased sexual ability
  • Diarrhea
  • dizziness or lightheadedness when getting up from a lying or sitting position
  • fatigue
  • increased sensitivity of skin to sunlight
  • loss of appetite
  • upset stomach

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

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

  • flu-like symptoms (e.g., Fever or chills, sore throat, cough, achiness)
  • joint pain
  • skin rash or Hives
  • signs and symptoms of too much potassium loss:
    • dryness of mouth
    • increased thirst
    • irregular heartbeat
    • mood or mental changes
    • muscle cramps or pain
    • nausea or vomiting
    • unusual tiredness or weakness
    • weak pulse
  • signs and symptoms of too much sodium loss:
    • confusion
    • convulsions
    • decreased mental activity
    • irritability
    • muscle cramps
    • unusual tiredness or weakness
  • signs of kidney problems (e.g., increased urination at night, decreased urine production, blood in the urine, change of urine colour)
  • signs of liver problems (e.g., nausea, vomiting, diarrhea, loss of appetite, weight loss, yellowing of the skin or whites of the eyes, dark urine, pale stools)
  • symptoms of high blood sugar (e.g., frequent urination, increased thirst, excessive eating, unexplained weight loss, poor wound healing, infections, fruity breath odour)

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

  • chest pain
  • signs of a serious allergic reaction (e.g., abdominal cramps, difficulty breathing, nausea and vomiting, or swelling of the face and throat)
  • signs of pancreatitis (e.g., abdominal pain on the upper left side, back pain, nausea, fever, chills, rapid heartbeat, swollen abdomen)
  • signs of a severe skin reaction such as blistering, peeling, a rash covering a large area of the body, a rash that spreads quickly, or a rash combined with fever or discomfort

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 Zaroxolyn (Metolazone).


Available form

Each pink, slightly biconvex tablet, debossed with its numeric strength on one side and "ZAROXOLYN" on the other, contains Zaroxolyn (Metolazone) 2.5 mg. Nonmedicinal ingredients: microcrystalline cellulose, D&C Red No. 33 Aluminum Lake, and magnesium stearate. Zaroxolyn (Metolazone) does not contain alcohol, gluten, lactose, paraben, sucrose, or tartrazine.



Do not take Zaroxolyn (Metolazone) if you:

  • are allergic to Zaroxolyn (Metolazone) or any ingredients of Zaroxolyn (Metolazone)
  • are unable to urinate

Do not give Zaroxolyn (Metolazone) to people who are in hepatic coma or pre-coma.



There may be an interaction between Zaroxolyn (Metolazone) and any of the following:

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 Zaroxolyn (Metolazone). 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 taking 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 take Zaroxolyn (Metolazone).

Diabetes: If you have diabetes, your doctor should closely monitor your condition while you are taking Zaroxolyn (Metolazone), as it may affect blood sugar control (by increasing blood sugar levels).

Electrolytes: Zaroxolyn (Metolazone) may cause imbalances of electrolytes in the blood such as potassium, sodium, and magnesium. The signs of electrolyte imbalance include:

  • drowsiness
  • Dry Mouth
  • lethargy
  • Low Blood Pressure
  • muscle fatigue
  • muscle pains or cramps
  • racing heart rate
  • reduced urine output
  • restlessness
  • stomach disturbances such as nausea and vomiting
  • thirst
  • weakness

If you have these symptoms, contact your doctor as soon as possible.

Gout: High blood uric acid levels may be brought on by Zaroxolyn (Metolazone). This may result in a gout attack for people with a history of gout. If you have a history of gout, discuss with your doctor how Zaroxolyn (Metolazone) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Zaroxolyn (Metolazone), and whether any special monitoring is needed.

Kidney and liver function: If you have reduced kidney or liver function, discuss with your doctor how Zaroxolyn (Metolazone) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Zaroxolyn (Metolazone), and whether any special monitoring is needed.

Low blood pressure: Some people taking Zaroxolyn (Metolazone) experience sudden blood pressure drops when getting up from a sitting or lying position. These blood pressure drops could lead to dizziness, lightheadedness, and falls. If you experience this problem, try getting up more slowly. If it persists or if you faint, contact your doctor.

Systemic Lupus erythematosus: Zaroxolyn (Metolazone) can worsen or activate the symptoms of lupus. If you experience swollen and painful joints, fever, fatigue, or rash on the nose and cheeks while taking Zaroxolyn (Metolazone), contact your doctor.

Pregnancy: Zaroxolyn (Metolazone) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Zaroxolyn (Metolazone), contact your doctor immediately.

Breast-feeding: Zaroxolyn (Metolazone) passes into breast milk. If you are a breast-feeding mother and are taking Zaroxolyn (Metolazone), it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using Zaroxolyn (Metolazone) have not been established for children.

Zaroxolyn frequently asked questions

How To Buy Zaroxolyn Online?

You can buy Zaroxolyn online at PocketPills if you already have a valid prescription from your doctor. You can get started by uploading your prescription, ordering a refill by transferring any existing medications to our pharmacy or talking to one of our Canadian Doctors to get an online prescription. Get started now!

How To Get a Prescription for Zaroxolyn?

You can consult a Canadian doctor online at Our physicians can prescribe medications online during your consultation. Once you receive a prescription, you'll have the option to have it delivered to your door in discreet packaging and at no additional cost!. Click here to get an online prescription today!

Can I Get Same-Day Delivery?

Yes! We do provide same-day delivery in select areas. We do next business day delivery and can also ship overnight as well.

How Much is Shipping Cost for Zaroxolyn in Canada?

Shipping cost for Zaroxolyn to you in Canada is zero. Pocketpills offers FREE shipping anywhere in Canada and low dispensing fees to help you get access to treatment.

How to get Zaroxolyn delivered to my home?

You could get Zaroxolyn delivered at your doorstep from us in Canada if you ordered prescription medications with a valid prescription. If you are not sure if we deliver to your area, contact us.

How to get Zaroxolyn in Canada for free?

You can get Zaroxolyn for free in Canada if your health insurance provider covers it fully. Contact your provider or us to help you find out if you qualify to get Zaroxolyn for free.

Can I consult a doctor online to get Zaroxolyn?

Yes. You can book a consultation online with a Canadian doctor here with us at PocketPills to see if you qualify for a prescription to order Zaroxolyn.

Can I buy Zaroxolyn without a prescription?

You need a valid prescription to buy Zaroxolyn from us. Contact us if you need a prescription. One of our doctors can give you a telephone call at your convenience.


All material © 1996-2021 MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health providers with any questions you may have regarding a medical condition.

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