Cialis

Generic Name: Tadalafil

  • What is this medication and its most common uses?

    Cialis is a medicine used to treat men with erectile dysfunction, benign prostatic hyperplasia (enlargement of the prostate gland, which may in turn block the flow of urine), or both.

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

    How does this medication work?

    Cialis works by relaxing blood vessels in the penis, prostate, and bladder. By relaxing blood vessels in these areas, Cialis increases blood flow to the penis and may help men with erectile dysfunction get and keep an erection satisfactory for sexual activity, and decrease symptoms of benign prostatic hyperplasia.

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

    What:

    Erectile Dysfunction: Cialis may improve a man's ability to have sexual intercourse.

    Benign Prostatic Hyperplasia: Cialis has been shown to improve symptoms of benign prostatic hyperplasia, such as an increased need to urinate, or experiencing incomplete emptying, stopping and starting, weak stream, or pushing or straining during urination.

    When:

    Erectile Dysfunction: When used on an as-needed basis, Cialis may start working within 30 minutes and may work for up to 36 hours.

    Benign Prostatic Hyperplasia: Studies show that Cialis may start to improve symptoms within 2 weeks.

    How do I know it is working?

    You may start to notice an improvement in your ability to have sexual intercourse and/or in your symptoms of benign prostatic hyperplasia. This is a good indicator that your medication is working. Your healthcare provider may ask you questions from time to time to assess how well your medicine is working and to check for improvement of your condition.

  • 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, upset stomach, back pain, muscle pain, stuffy nose, flushing (warm, hot, burning feeling to your face).

    Less common side effects may include:

    Sudden drop in blood pressure with symptoms such as dizziness, lightheadedness, or fainting. Stop sexual activity and get medical help right away if you develop chest pain, dizziness, or nausea during sex.

    An erection that lasts many hours. Get medical help right away if you get an erection that lasts more than 4 hours. If this is not treated right away, permanent damage to your penis can occur.

    Vision changes such as seeing a blue shade to objects or having difficulty telling the difference between the colors blue and green. Sudden decrease or loss of vision in one or both eyes may also occur.

    Sudden decrease or loss in hearing, with symptoms such as ringing in your ears or dizziness.

  • Who should not take this medication?

    Do not take Cialis if you are allergic to it, any of its ingredients, or a medicine called Adcirca.

    Do not take Cialis if you take any medicines called "nitrates." Nitrates include nitroglycerin that is found in tablets, sprays, ointments, pastes, or patches. Nitrates can also be found in other medicines such as isosorbide dinitrate or isosorbide mononitrate. Ask your healthcare provider or pharmacist if you are not sure if any of your medicines are nitrates.

  • 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 Cialis. Also, talk to your healthcare provider about your complete medical history, especially if you have heart problems (such as chest pain, heart failure, irregular heartbeats, or history of a heart attack); low blood pressure or high blood pressure that is not controlled; liver, kidney, or bleeding problems; severe vision loss or a condition known as retinitis pigmentosa (an eye disease that involves damage to the layer of tissue in the back of the eye called the retina); stomach ulcers; blood cell problems (such as sickle cell anemia, multiple myeloma, or leukemia); a deformed penis shape (such as may occur with a condition known as Peyronie's disease); history of an erection that lasted more than 4 hours; or if you have ever had a stroke.

  • 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.

    Erectile Dysfunction (For Use as Needed)

    Adults:

    The recommended starting dose is 10 milligrams (mg), taken at least 30 minutes before expected sexual activity. Your healthcare provider may adjust your dose as needed.

    Erectile Dysfunction (For Once a Day Use)

    Adults: The recommended starting dose is 2.5 mg once a day, at about the same time every day, without regard to timing of sexual activity. Your healthcare provider may increase your dose as needed.

    Benign Prostatic Hyperplasia

    Adults: The recommended dose is 5 mg once a day, at about the same time every day.

    Combined Treatment of Erectile Dysfunction and Benign Prostatic Hyperplasia

    Adults: The recommended dose is 5 mg once a day, at about the same time every day, without regard to timing of sexual activity.

    If you have liver or kidney impairment, or are taking certain other medications, your healthcare provider may adjust your dose appropriately.

  • How should I take this medication?

    Take Cialis exactly as prescribed by your healthcare provider. Do not change your dose or take Cialis more often without first talking to your healthcare provider.

    Take Cialis with or without food.

  • What should I avoid while taking this medication?

    Do not take other medicines or use other treatments for erectile dysfunction while you are taking Cialis.

    Do not drink excessive amounts of alcohol while you are taking Cialis.

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

    If Cialis is taken with certain other drugs, the effects of either could be increased, decreased, or altered. Cialis may interact with numerous medications. Therefore, it is very important that you tell your healthcare provider about any other medications you are taking.

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

    Cialis is not for use in women.

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

    If you are taking Cialis as needed, it is not for regular use. Take it only before sexual activity as directed by your healthcare provider.

    If you are taking Cialis once a day and miss a dose, 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.

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I'm Kristen Dore, PharmD. Welcome to PDR Health!

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