Product details

Isoptin is an antihypertensive that can treat a variety of conditions including high blood pressure, severe angina (chest pain), and certain heart rhythm issues. This medication can also decrease and sometimes prevent the likelihood of experiencing angina. In some cases, Isoptin can be used to prevent migraines. A doctor may also prescribe this calcium channel blocker to help control or lower your heart rate. When you get Isoptin for these purposes, it can make it easier for you to exercise regularly. The generic form of Isoptin is Verapamil, which contains the same active ingredients and functions in the same way.

While we don’t offer Isoptin here at Nurx™, we do have other generic antihypertensive medications to treat migraines.

Additional Details

  • Prevents migraines
  • Lowers high blood pressure
  • Helps prevent strokes
  • Helps prevent heart attacks
  • Treats angina
  • Treats irregular heartbeats
  • Helps prevent kidney issues
  • Used in patients who had a recent heart attack
Active Ingredients
  • Verapamil hydrochloride
  • Avoid drinking alcohol when taking Isoptin as it can lower your blood pressure even further.
  • Don't stop taking Isoptin suddenly as it can worsen your condition.
  • Don't use Isoptin if you have a serious heart condition such as severe heart failure or certain heart rhythm disorders.
  • Don't take this medication if you're allergic to muscle relaxants.
  • Avoid breastfeeding when taking Isoptin.
  • Be careful when you drive or operate machinery as Isoptin may impair your reactions or your thought process.
  • If you're taking disopyramide, avoid taking it within 48 hours before or 24 hours after you take Isoptin.
  • Avoid standing too quickly after sitting or lying down when taking Isoptin.
  • Consult with your doctor before eating grapefruit or drinking grapefruit juice.
  • Don't take Isoptin if you have an allergy to medicine with verapamil hydrochloride.
  • Don't take this medication if you're allergic to medicine used in the treatment of human immunodeficiency virus.
  • Don't take it if you're allergic to St John's-wort.





  • How Does Isoptin Work?

    As a calcium-channel blocker, Isoptin affects your heart and muscle cell's calcium level. Essentially, these calcium channel blockers open your blood vessels and let more oxygen reach your heart while lowering your blood pressure in the process. Isoptin allows the muscles of your heart and blood vessels to relax, which allows blood to move more freely. When it does this, it lowers the amount of work your heart has to do. Since blood vessels do seem to have a connection to migraines, Isoptin and other antihypertensives are sometimes effective treatments.

    In terms of dosage, it all depends on your condition and your doctor's recommendation. It's available in several different dosages and immediate- and extended-release versions. Make sure to store this medication at room temperature and away from heat, moisture, and light.

  • How Is It Used?

    To use Isoptin, take it orally with or without food as directed by your doctor. Swallow the tablets with a full glass of water. Make sure to take it regularly to see its full range of benefits. You should also get in the habit of taking it at the same time each day to help with its effectiveness. Doctors usually prescribe an immediate-release version that's taken every eight hours or an extended-release pill taken before bed.

    Continue taking Isoptin even if you do start feeling better. It's also important to note that you shouldn't use Isoptin to treat chest pain or migraines the moment they occur since it's a preventative medication. Consult with a medical professional regarding relief for sudden attacks.

  • Is Isoptin Easy To Get?

    It's fairly easy to get Isoptin once you have a prescription from a medical professional. Depending on your insurance, the Isoptin or the generic version Verapamil may be covered. Regardless, here at Nurx, we're committed to finding you an affordable option for your budget.

  • What Precautions Should I Take Before Starting Isoptin?

    When you consult with your doctor, let them know if you have congestive heart failure, liver disease, kidney disease, low blood pressure, or a nerve-muscle disorder. You should also tell them if you're pregnant or plan to become pregnant as its effects during pregnancy remain unknown at this time. Since the active ingredient in this medication can pass into breast milk and cause side effects in a nursing baby, avoid breastfeeding while taking Isoptin. If you need surgery, let the surgeon know ahead of time that you're taking Isoptin.

    Once you take Isoptin, check your blood pressure regularly. In some cases, you may need your kidney or liver function checked, too. As with all medications, it's important to have regular visits or consultations with your doctor to monitor your progress and adjust your dosage as needed.

  • Are There Any Known Side Effects?

    Just like all other medications, there are some side effects that may occur when you take Isoptin. Though they're unlikely to occur, it's best to err on the side of caution and be aware of what to look out for. Notify your doctor immediately if you experience any of the following:

    Chest pain.

    Fast or very slow heart rate.


    Lightheadedness or fatigue.

    Shortness of breath.


    Rapid weight gain.

    Severe dizziness.

    Swelling ankles or feet.

    Lung problems (anxiety, sweating, pale skin, trouble breathing).

    Liver problems (loss of appetite, feeling tired, upper stomach pain, dark urine, jaundice, easy bleeding or bruising, clay-colored stool).


    Severe blisters, skin rash, itching, or flaking skin.

    Some more common side effects include the following:




    Nausea and upset stomach.


    Skin rash or itching.

    Low blood pressure.


    In many cases, any mild side effects that you may experience occur only when you begin taking Isoptin. Once your body becomes accustomed to this medication, you're less likely to experience side effects. Speak with your doctor or reach out to us at Nurx if you have questions about potential side effects and how they could change your lifestyle. For example, you may want to avoid driving or operating heavy machinery until you see how Isoptin affects you.

  • Can I Take Isoptin With Other Medications?

    Like other medications, Isoptin may interact with other drugs you're taking. Some of the medications that may interact with Isoptin include blood pressure medications, Carbamazepine, Buspirone, Cimetidine, Lithium, Digoxin, Rifampin, HIV/AIDS medicine, antibiotics, and beta-blockers. Since this isn't a comprehensive list, notify your doctor of your other medications ahead of time.

  • Can I Buy This Drug Online Through Nurx?

    If our medical professionals think an antihypertensive would be a good fit for you, they'll prescribe you a generic medication that works similarly to Isoptin. We don't currently carry Isoptin, however.

  • How Do I Get a Prescription for Isoptin Through Nurx?

    Here at Nurx, we want to make sure you get the quality treatment and medications you deserve. When you sign up with Nurx, you'll complete a health assessment, then we'll connect you with a licensed healthcare provider if we're available in your state. From there, we can get you a prescription for a generic antihypertensive medication. Even if you don't have insurance, Nurx can help you find the right medication or brand to fit your budget.

  • How Long Would It Take to Deliver This Drug If I Bought It Online?

    Once we receive and review your request, one of our medical providers will prescribe the medication that's right for you. Most of the time, you'll have your prescription within three to five business days once it is filled at our pharmacy.

  • Is There a Generic Version of Isoptin?

    Verapamil is the generic version of Isoptin. At Nurx, we offer a variety of generic antihypertensives and other prescription medications that can help prevent migraines. Our licensed professionals will help you find the best drug for your needs.

  • Who Makes This Drug?

    Isoptin is supplied by Knoll Pharmaceutical Company.

  • Does Isoptin Cause Weight Gain?

    Though unlikely, Isoptin may cause unexplained or sudden weight gain. If this side effect occurs, notify your doctor as soon as possible so they can determine a new course of treatment.

  • Does Isoptin Cause Constipation?

    Though Isoptin has the potential to cause constipation, you may not experience this side effect. It's important to remember that everyone's body is different, and because of this, you may have different side effects or none at all.

  • Does Isoptin Lower Blood Pressure?

    Yes! As an antihypertensive medication, Isoptin can effectively treat high blood pressure. It lowers your blood pressure by relaxing your heart and blood vessels.

  • How Does Nurx Work?

    Nurx is a telehealth platform offering easy online access to doctors and seamless delivery of medications. No more time-consuming trips to the clinic and no more frantic pharmacy runs. We put you in control of your own health, empowering you to get the care you need, when you need it. From diagnosis to delivery of prescriptions, we make every part of getting healthy and staying healthy, better.For more information and to signup, visit and follow us @nurxapp on Twitter and Instagram.

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