The following information describes dosages that are commonly used or recommended. However, be sure to take the dosage your doctor prescribes for you.
Your doctor will determine the best dosage to fit your needs. For symptoms of benign prostatic hyperplasia , the recommended dosage of Cialis is 5 mg once a day. You should take the drug at about the same time each day. In some cases, your doctor may have you take 5 mg of Cialis a day along with finasteride Proscar to treat BPH. If your doctor recommends that you take Cialis only as needed for ED, the usual dosage is 10 mg before sexual activity. They may reduce this to 5 mg if the medication is working too well.
This will increase the dose back to 10 mg. The maximum dose of Cialis that can be taken in a day is 20 mg. In clinical trials , Cialis helped people with ED symptoms for up to 36 hours after their dose. And be sure to speak with them if you feel you need more of the drug, rather than increasing your dosage yourself. Cialis can also be taken once a day to treat ED. In this case, the dosage usually starts at 2.
And if your doctor recommends using Cialis every day, you should take the drug at about the same time each day. You should try to take your dose at about the same time each day. This dose is too high and may cause serious side effects, such as decreased blood pressure. If you forget to take your once-a-day dose of Cialis, take it as soon as you remember. However, never take two doses in 1 day.
If you missed your dose yesterday, just skip the missed dose and continue with your once-a-day dosing. A medication timer may be useful, too. Cialis may also be used to treat ED long term. But in some cases, your doctor may determine the cause of your ED, such as depression or an illness.
In such instances, you may be able to stop taking Cialis after the cause of your ED has been treated. Cialis can cause mild or serious side effects. The following lists contain some of the key side effects that may occur while taking Cialis. For more information on the possible side effects of Cialis, talk with your doctor or pharmacist. They can give you tips on how to deal with any side effects that may be bothersome.
Most of these side effects may go away within a few days or a couple of weeks. Call your doctor right away if you have serious side effects. You may wonder how often certain side effects occur with this drug. As with most drugs, some people can have an allergic reaction after taking Cialis. The allergic reactions included a serious rash and skin conditions such as Stevens-Johnson syndrome a life threatening rash that causes painful blisters.
A more severe allergic reaction is rare but possible. Symptoms of a severe allergic reaction can include:. Call your doctor right away if you have a severe allergic reaction to Cialis.
Headache is a common side effect that may occur with Cialis. In clinical trials , depending on the condition being treated:. If you have headaches that are bothersome to you while using Cialis, talk with your doctor. They may be able to recommend ways to help ease this side effect.
Changes in blood pressure are a possible side effect of taking Cialis. Low blood pressure occurs most often while taking this medication. But high blood pressure can occur as well. Clinical trials looked at blood pressure in people who took 20 mg of Cialis or a placebo. Blood pressure decreased by an average of 1. If you have these symptoms while taking Cialis, tell your doctor right away.
Although rare, Cialis may also increase your blood pressure. This was a side effect that was reported only in people who took Cialis once a day for erectile dysfunction ED. In this trial , depending on the condition being treated:. If you have any symptoms of high blood pressure, such as headaches or chest pain, tell your doctor right away.
Back pain is a common side effect with Cialis. In clinical trials , depending on the condition being treated, back pain was reported in:. Back pain usually occurs between 12 and 24 hours after taking Cialis. Usually, back pain goes away within 2 days of taking your dose. Heartburn is a common side effect of Cialis. In clinical trials , depending on the condition being treated, heartburn occurred in:.
They may be able to recommend ways to treat this side effect. This side effect can lead to priapism , which is a painful erection lasting longer than 4 hours. If you have an erection that lasts longer than 4 hours while using Cialis, see a doctor or go to the hospital right away. Very rarely, Cialis may cause a loss of vision in either one eye or both eyes. While taking Cialis, if you have any changes in vision, such as decreased vision or loss of vision, tell your doctor right away.
The best way to take Cialis is to use it exactly as your doctor directs, either once a day at the same time each day or only as needed.
And you should never take Cialis more than once a day. If you have any questions about the best way to avoid specific side effects from Cialis, talk with your doctor.
You may wonder how Cialis compares with other medications that are prescribed for similar uses. Here we look at how Cialis and Viagra are alike and different. The active drug ingredient in Cialis is tadalafil.
The active drug ingredient in Viagra is sildenafil. Both Cialis and Viagra come as tablets that you swallow. Cialis may be taken once a day or just when needed for sexual activity. Usually, Viagra is taken only as needed for sexual activity. Cialis and Viagra both contain medications to treat ED. Therefore, these medications can cause very similar side effects, but some different ones as well.
Below are examples of these side effects. These lists contain up to 10 of the most common mild side effects that can occur with Cialis, with Viagra, or with both drugs when taken individually. This list contains examples of serious side effects that can occur with Cialis and Viagra when taken individually. One study compared men who took Cialis either once a day or as needed with men who took Viagra as needed.
In another ED study , men took either Cialis as needed or Viagra as needed for 4 weeks. They then switched to the other medication for an additional 4 weeks. Finally, the men decided which drug they preferred. Researchers found that Most often, men reported that they preferred Cialis because the medication lasts longer in the body. The study also looked at how well the drugs worked to treat ED.
Scores for self-esteem and relationship quality were about equal in the two groups. Cialis and Viagra are both brand-name drugs. Currently, there are generic forms of both drugs. The generic form of Cialis is called tadalafil. The generic form of Viagra is called sildenafil.
Brand-name medications usually cost more than generics. According to estimates on GoodRx. The generic versions of both Cialis and Viagra cost significantly less than the brand-name versions. Like Viagra above , the drug Levitra has uses similar to those of Cialis. The active drug ingredient in Levitra is vardenafil. Both Cialis and Levitra come as tablets that you swallow. Cialis can be taken once a day or as needed for sexual activity.
Levitra is taken only as needed for sexual activity. Cialis and Levitra both contain medications used to treat ED. These lists contain up to 10 of the most common mild side effects that can occur with Cialis, with Levitra, or with each drug when taken individually. These lists contain examples of serious side effects that can occur with Cialis, with Levitra, or with both drugs when taken individually. Studies have found both Cialis and Levitra to be effective for treating ED.
Cialis and Levitra are both brand-name drugs. The generic form of Levitra is called vardenafil. The generic versions of both Cialis and Levitra cost significantly less than the brand-name versions. Both Cialis and Adcirca have the same active drug ingredient, tadalafil.
Adcirca is approved to treat a type of high blood pressure in your lungs called pulmonary arterial hypertension PAH. The drug is for use in men and women. PAH is a specific kind of pulmonary hypertension that occurs in the arteries of your lungs. Although the active drug ingredient is the same in both Cialis and Adcirca, the two drugs have different dosages. Your doctor may want you to take Cialis once a day or just as needed for sexual activity.
Keep in mind that you should never take Cialis more than once a day. This is because on average, it takes the drug 2 hours to be at the highest level in your body. However, some people may have better erectile function 30 minutes after they take the drug. The researchers say that the results are preliminary.
Jennifer Berman said it's important for women to remember that this pill can't overcome mental and emotional barriers to a satisfying sex life. Women who suffer from female sexual arousal disorder can experience a variety of symptoms, including lack of "excitement," vaginal dryness, loss of sensation and sensitivity in the genitals and nipples and low blood flow to the genitals. Women in the study were screened to make sure that psychological or relationship issues were not the cause of the problem.
Since Viagra enhances sexual arousal in men by increasing the blood flow to the penis, the Bermans theorized that the drug could have a similar effect on women, increasing the blood flow to the female genitals and thereby producing better arousal, sensation and lubrication in the genital area. Women in the study were given doses of 50 milligrams, which was increased to milligrams only once during the study based on how well the lower dose was working, and the women's tolerance to it.
Do not take tadalafil if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate.
Nitrates are also found in some recreational drugs such as amyl nitrate, butyl nitrate or nitrite "poppers". Taking tadalafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure. Some tadalafil can remain in your bloodstream for 2 or more days after each dose you take longer if you have liver or kidney disease. Avoid nitrate use during this time. A small number of people taking tadalafil have had sudden vision loss.
Most of these people already had eye problems, or had diabetes or other health conditions that can affect blood vessels in the eyes. It is not clear whether tadalafil causes vision loss. Do not start or stop taking tadalafil during pregnancy without your doctor's advice.
Having pulmonary arterial hypertension PAH during pregnancy may cause heart failure, stroke, or other medical problems in both mother and baby. Tell your doctor right away if you become pregnant. Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed. When taking Adcirca or Alyq, you may need 2 tablets for a full dose.
Take both tablets one after the other. Do not split the dose. Take Cialis just before sexual activity, but not more than once per day. Cialis can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Do not change your tadalafil dose or stop taking this medicine without your doctor's advice. If you miss a dose of Adcirca or Alyq , take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose.
Do not take two doses at one time. Grapefruit may interact with tadalafil and lead to unwanted side effects. Avoid the use of grapefruit products.
Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop and get medical help at once if you have nausea, chest pain, or dizziness during sex.
You could be having a life-threatening side effect. This is not a complete list of side effects and others may occur.
Call your doctor for medical advice about side effects. Do not take Cialis with similar medications such as avanafil Stendra , sildenafil Viagra or vardenafil Levitra.
Tell your doctor about all other medications you use for erectile dysfunction. This list is not complete.
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