Zyflo CR

(Zileuton ER)
  • All Strengths

  • 600mg

Brand Choices

Zyflo CR 600mg

Extended Release Tablets
Zyflo CR 600mg
Zyflo CR 600mg

Zyflo CR 600mg

Extended Release Tablets

Currently Unavailable

Prescription required. Manufactured by Cornerstone Therapeutics. Product of United States. Shipped from United States.

Zyflo CR Drug Information

Are you paying too much for Zyflo CR? Save up to 80% when purchasing your prescription drugs from Universal Drugstore. Our prescription service aspires to conveniently provide you with affordable medications at the lowest prices in Canada and internationally.

We’re working with a number of Canadian and international pharmacy partners, all licensed by their qualified governmental regulatory bodies. By collaborating with our partners, we are able to offer a wide range of brand and generic medications at very competitive prices. You can obtain discount prescription drugs through our online pharmacy. Our prices are already up to 80% lower than your local pharmacy. We are committed to providing you with the best service and prices. This is why we’ll match the price of any of our online pharmacy competitors who require a valid prescription.

Order Zyflo CR at a discount price today!

Why Buy Zyflo CR from Universal Drugstore?

We are the global leader in online prescription drug savings with almost 20 years of experience supplying prescription and over the counter drugs to our international customers. More than 300,000 international patients have used our service to receive their prescription and over-the-counter medications.

In the past two decades together with our international pharmacy partners we have shipped over 2 million prescription medication orders to our satisfied customers.

Your safety is our top priority. You can feel completely secure purchasing through us. We use SSL encryption to secure all of your personal information that is transferred through our website while using our service.

How Long Does It Take to Receive My Zyflo CR Order?

You can easily place an order on our website in under 5 minutes. First you need to set up an account with us, create a payment method, and send us your prescriptions. Alternatively, you can order by downloading our order form or by placing an order over the phone. Delivery can take approximately 2 weeks to North America, and 4 weeks to other countries.

  • Zyflo CR Overview

    Zileuton is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma. Controlling symptoms of asthma helps you maintain your normal activities and cuts down on time lost from work or school. Zyflo CR must be used regularly to be effective. It does not work right away and should not be used to relieve sudden asthma attacks. If an asthma attack occurs, use your quick-relief inhaler (such as albuterol, salbutamol) as prescribed. Zyflo CR is not recommended for use in children younger than 12 years due to possible risk of liver problems.

  • How to Use Zyflo CR

    Read the Patient Information Leaflet if available from your pharmacist before you start taking zileuton and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take Zyflo CR by mouth with food as directed by your doctor, usually 2 times daily (within 1 hour after the morning and evening meal). Swallow the tablets whole. Do not crush, chew, or split the tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Use Zyflo CR regularly to get the most benefit from it. To help you remember, take it at the same times each day. Keep taking Zyflo CR even if you feel well. Do not increase your dose, use Zyflo CR more often, or stop using it without first consulting your doctor. Get medical help right away if your asthma symptoms worsen or if you are using your quick-relief inhaler more than usual or more often than prescribed.

  • Zyflo CR Precautions

    Before taking zileuton, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Zyflo CR may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using Zyflo CR, tell your doctor or pharmacist your medical history,liver disease, alcohol use. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Older women may be at greater risk for liver problems while using Zyflo CR. During pregnancy, Zyflo CR should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if Zyflo CR passes into breast milk. Consult your doctor before breast-feeding.

  • Zyflo CR Misdose

    If you miss a dose of Zyflo CR, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

  • Zyflo CR Interactions

    Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Zyflo CR can slow down the removal of other medications from your body, which may affect how they work. An example of an affected drug is pimozide, among others.

  • Zyflo CR Side Effects

    What are Zyflo CR side effects?

    Side effects are physical, mental or emotional symptoms which occur in addition to or outside of the desired effect of a therapeutic treatment such as an over-the-counter or prescribed drug or medication. Side effects from Zyflo CR may occur at the beginning or at the end of treatment and may also depend on the length of time an individual remains on the treatment. Side effects, also known as adverse effects, are generally more likely to occur when starting treatment. Individuals may also experience side effects from Zyflo CR as a result of an interaction with other medications.

    Side Effects of Zyflo CR

    The side effects of Zyflo CR may vary in number and intensity for many different reasons. Factors such as age, weight, gender and ethnicity may influence the side effects of Zyflo CR. Also, an individual’s state of general physical health and seriousness of the disease or illness as well as an increase or decrease in dosage may lead to side effects. Further, side effects from Zyflo CR may also occur as a result of an interaction with certain herbal supplements, foods or drinks.

    Prescription drug side effects can be serious and may cause patients to stop the treatment. However, when side effects from the use of a prescription drug, such as Zyflo CR, do occur a patient should consult their physician. A physician may prescribe an additional treatment in order to control the symptoms or an adjustment in the dosage may be made. In addition, changes to diet, exercise or other lifestyle activities may help to lessen the side effects of Zyflo CR.

    By understanding side effects and the factors which may influence the occurrence of side effects patients are empowered to take an active role in their care. Patients who have specific questions about the side effects of Zyflo CR, or any other medication, should contact their physician. General information about Zyflo CR and the side effects associated with Zyflo CR are described in the following:

    Common Zyflo CR Side Effects


    Less Severe

    • sore throat
    • sinusitis
    • nasal passage irritation
    • dyspepsia
    • nausea

    Less Frequent Zyflo CR Side Effects


    • disease of liver
    • abnormal hepatic function tests

    Less Severe

    • upper respiratory infection
    • myalgia
    • skin rash
    • headache disorder
    • vomiting
    • diarrhea
    • abdominal pain with cramps

    Rare or Very Rare Zyflo CR Side Effects


    • suicidal ideation
    • suicidal

    Less Severe

    • aggressive behavior
    • insomnia
    • nervousness
    • tremor
    • irritability
    • depression
    • hallucinations
    • dream disorder
    • symptoms of anxiety
    • agitation
  • Zyflo CR Storage

    Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard Zyflo CR when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

IMPORTANT DISCLAIMER: All medical content is supplied by a third-party company who is independent from this web site. As such, this web site cannot guarantee the reliability, accuracy, and /or medical efficacy of the information provided. In all circumstances, you should seek the advice of a health professional pertaining to drug, treatment and/or medical condition advice. Note that not all products are shipped by our contracted Canadian pharmacy. This website contracts with dispensaries around the world that ship products directly to our customers. Some of the jurisdiction include but are not limited to United Kingdom, Europe, Turkey, India, Canada, Vanuatu, Mauritius, and USA. The items within your order may be shipped from any one of these jurisdictions depending on the availability and cost of the products at the time you place your order. The products are sourced from these countries as well as others. Please note that the product appearance may vary from actual product received depending on availability.