Isradipine

Generic Name: Isradipine

  • What is this medication and its most common uses?

    Isradipine is a medicine known as a calcium channel blocker. It is used alone or in combination with other medicines to treat high blood pressure.

  • What should I know when beginning and continuing on this medication?

    How does this medication work?

    Isradipine lowers blood pressure by relaxing your blood vessels, which allows your blood to flow through with less resistance.

    What are the beneficial effects of this medication and when should I begin to have results?

    What: By lowering your blood pressure, isradipine may lower your risk of a stroke or a heart attack.

    When: Isradipine can start lowering your blood pressure within 2-3 hours. Though you may not feel an improvement or change in the way you feel, it is very important to keep taking your medicine as prescribed to keep your condition under control.

    How do I know it is working?

    Check your blood pressure regularly. Your healthcare provider may also check your blood pressure at every visit. Following an appropriate diet and exercise plan will also affect your blood pressure results.

  • What are the possible side effects of this medication?

    The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

    More common side effects may include: headache.

    Less common side effects may include:

    Low blood pressure with symptoms such as fainting or dizziness.

  • Who should not take this medication?

    Do not take isradipine if you are allergic to it or any of its ingredients.

  • What should I tell my healthcare provider before I take the first dose of this medication?

    Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with isradipine. Also, tell your healthcare provider about your complete medical history, especially if you have heart, kidney, or liver problems; low blood pressure; or if you are pregnant, plan to become pregnant, or are breastfeeding.

    Also, talk to your healthcare provider about any planned surgeries or procedures.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

    Adults: The recommended starting dose is 2.5 milligrams twice a day. Your healthcare provider may increase your dose as needed, until the desired effect is achieved.

  • How should I take this medication?

    Take isradipine exactly as prescribed by your healthcare provider.

  • What should I avoid while taking this medication?

    Do not change your dose or stop taking isradipine without first talking to your healthcare provider.

  • What are the possible food and drug interactions associated with this medication?

    If isradipine is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining isradipine with the following: cimetidine, fentanyl, propranolol, or rifampicin.

  • May I receive this medication if I am pregnant or breastfeeding?

    The effects of isradipine during pregnancy are unknown. Do not breastfeed while you are taking isradipine. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of this medication?

    If you miss a dose of isradipine, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store this medication?

    Store at room temperature. Protect from light.

Starting a Cholesterol Drug?

Our seven-week newsletter series, written by a pharmacist, will help you learn about your medication.
Sign Up

Meet the Pharmacists

I'm Beth Isaac, PharmD. Welcome to PDR Health!

Check out my latest post on cholesterol drugs.

Isradipine Related Drugs